Explanations and Misconceptions
Brief overview of how spirits and 'the spirit' exist beyond our bodies
(This is a very complicated explanation - I understand if it's difficult to follow)
Spirits are multi-versed beings. They do not conform to the rules as we as humans understand. They can be in more places than one and often are. It is a difficult concept as we are three-dimensional creatures and only understand our singular human minds, it's difficult to perceive that spirits can be essentially multiple bodies at the same time in different places. Your spirit companion can keep their eye on you at all times even when they are technically distant doing other things in other realms, should you call them, they can quickly transfer their full manifestation to your home.
You can understand by studying and practicing Astral Projection, that our Astral Body is a fluid vehicle than can take any shape or form we choose, as well as teleport in an instant to certain places based on thought or feelings alone.
Reincarnation and Layers of the Spirit
Reincarnation is a difficult subject to get into because it is so complex. The main structure of our higher bodies, our Higher Self, is that they are layered. Our Higher Self is the core beyond our physical form. They created this Earthly life, and they will choose the next - whether it is Earthly or a different form elsewhere. Our past lives are not all just Earthly, as we are much more than bound to one tiny existence in one tiny world over and over. That is not to say you haven't been here multiple times.
Our purpose overall else as souls is to experience and grow. When we return to our Higher Self we will recall all the information we left behind. There are instances upon death, depending on the death, that part of a human soul can splinter. Some of the soul leaves to heavenly planes, but a fragment is stuck on Earth. It is up to the fragment or "ghost" to find a way to freedom to move on. Sometimes the ghost is being held against its will by something dark. House cleansings are always important if you feel a spirit is present that you did not call forward, because they aren't supposed to be here stuck on Earth. No matter the reason, there are better places to be, and they need to go rejoin their Higher Self.
Spirit work and spiritual exploration is a doorway you can use to gain access to many memories and information about yourself as a whole being. We are not limited or withheld this information, it is always available, but as humans we must learn to access it. Humanity is a fickle existence, and a dear mentor once said it was considered one of the hardest worlds to incarnate in. This is due to the invisible veil and lack of memories we begin with when born. It is abnormal, and a purposeful challenge to our spirit. Earth is a very difficult journey for us, and perhaps an easily sad one because it is unnatural. Especially to the people closed off from what we are inside, closed off from the Higher Self. The people who reject that we are spiritual beings often live depressing close-minded lives, sometimes very hateful. They live only by the ego, and then suffer the ego's imperfections. They do not hear their spirit - only their imperfect human mind. Thus they live inadvertently in what they have manifested, a life of blockages, sickness, fear, sadness, and potentially anger.
Spirits you come into contact with are more connected than we are to the laws outside of Earth. They are fluid forms and unhindered in their physical manifestations, capable of understanding the complex nature beyond the human limitations. If you have Astral projected or have researched Astral projection, you will know how you can travel somewhere instantly just by thinking about it. You can also manifest and create different appearances, clothing, and objects just by concentrating in the Astral. Your projections and exploration is based all around thought and emotion. Some people even struggle with projection due to fear or nervousness, which causes you to snap back into your body.
Spoken language often has no place in the spiritual realm, it is instead communication of emotion, feelings, depth - it is an instant transfer of energy, visions, and thought. Two souls can speak this way without words. It is the language of spirit. Thoughts and energy is a flash of communication all at once, far faster and far superior than trying to slowly explain through words.. Spirits can transfer a series of images or conversations in almost an instant. It is far more convenient, and it is why they are easily able to telepathically speak to us and hear us through our thoughts. Thoughts are energy, they are tangible.
In the Astral you are not hindered by boundaries of flesh or the human mind. You exist as a four-dimensional being. When exploring ourselves in states purely outside the body, like in fullbody projection or in Astral Travel through deep meditation, we then understand first hand what it is like to be a 'spirit'. We are unhindered and able to create and change ourselves at will. For example, a dragon could take on a spiritual human form when speaking to you in the Astral or in a vision. They shape themselves this way, often for the Keeper's comprehension or comfort to speak to something more relatable. But in actuality they are still only a dragon, but they are projecting an appearance because they can simply manifest it fluidly.
Relationships, Sex, and Sexuality
Monogamous relationships between two spirits is and is not exactly existent, it is a difficult concept. Jealousy is real, but as well, complicated. Spirits can manifest in many places and in many ways at once. Our personal spirit, the Higher Self, is layered. We are a piece of a whole collective Higher Self. Our Higher Self is one core self overseeing the rest of its incarnations, The core self sees through all eyes of its incarnations at once, including yours.
A spirit can be in a relationship as one layer of itself, and respectfully be in another layer with another entity. They are not hindered between spaces, they are not one concentrated, corporeal form like we understand life to be. It is a difficult concept, again, as humans restrained by only one body and mind, we are not capable of comprehending being multiple sections of whole. As well, we are human, and different responses or beliefs that apply to our world no longer apply beyond ourselves. It just isn't the same line of rules, nor the same law of existence. While I cannot personally imagine a polyamorous relationship, I know fully that this frame of mind is silly when you are a spiritual being. You are too complex. You are not one mind. This is just your human reality right now.
Sexual preference and attraction still is a thing, depending on the part of us we are manifesting as. A spirit can still have preferred genders, forms, energies, or desires they like pursuing more than others. They can, and do, desire relations with humans depending on the spirit's preference.
However, sex isn't about reproduction in most aspects for energies and spirits. Some beings do procreate this way with their counterparts, Earthen spirits, in the higher Earthly realms that coincide our Earth, (Like the Fae realm, or dragon realms) often do procreate through sex, but that is because they are on their own vibration as corporeal beings. It is higher than ours, so they are unseen to our eyes, but they are in fact alive - not dead. They are not dead spirits simply because they are unseen to us.
Sexual euphoria is experienced and exchanged by merging and sharing sexual pleasure in an energy form as well as physical. Some Astral entities do like engaging sexually as a solid bodily form, other entities may share this union in energyforms only - where there aren't bodies involved. Angels are a good example of an exchange of euphoric states that are often through purely energyforms. While they can manifest in a loving exchange as any form, the angel's purest energyform is a very divine union beyond anything corporeal. It is still considered by our definition, like sex, when this occurs. As humans we would translate it this way, but it is far more involved and an entirely heightened aspect of divine love.
Yes, you can indeed feel and experience sex with spirits close to you. Depending on your abilities and senses. These senses come from clairvoyance and are felt through your etheric body. The etheric body then manifests the sensations physically. The experience can be felt in a variety of ways varying from a person's clairvoyant ability. You may feel ghostly touches, sometimes very intense and nearly physical, yet still oddly phantom. Arousal or heat, visions, or tingling.
Sex spirits can cause arousal, easily obtained and strong orgasm, and sexual dreams. If you are able to lucid dream, you can call to any romantic spirit by name in the dream and they should easily appear and engage you.
Spirits can manifest as multiple genders, no gender, or the gender they were at conception.
Most spirits can choose how their gender manifests, some may go back and forth between the two, and some may prefer one over the other.
Genderless beings may have a masculine or feminine energy. In our language they have to give pronouns they prefer, but there are not always pronouns in their language or existence.
Angels are often androgynous beings. They do not have genders. Many spirits can lack gender and appear as both qualities. Not all spirits look human in any way and will lack a gender for us to understand.
Age
Some spirits have a solid age we can translate in Earthly years, and some ARE Earthly years due to the spirit being from the Earthen Planes.
Some spirits are considered a constant. Angels for instance relayed to me that while there is a date they are conceived, due to their abundant, incomprehensible wisdom and vibration, they are considered to have always been alive after "birth". And to clarify, when I say birth, this is not a human birth. It is a conception from pure states of energy joining together.
From what I understand, angels are constants due to the incredibly holy channels of existence in which they are attached. Time is relative, and while on Earth we try to chart time, in other planes time can move differently. What an angel is capable of accessing and how they can travel through different pockets of time and space, it ends up becoming so convoluted and esoteric, it no longer can be explained as a simple linear time frame from when they are first born. I would confidentially assume other types of Holy beings are capable of being constants as well.