Accepted definitions of what a Soul is
1. The spiritual or immaterial part of a human being or animal, regarded as immortal.
2. A person's moral or emotional nature or sense of identity.
The soul, in many mythological, religious, philosophical, and psychological traditions, is the incorporeal and, in many conceptions, immortal essence of a person, living thing, or object.
The soul or psyche is the first actuality of a naturally organized body, but argued against its having a separate existence from the physical body. In Aristotle's view, the primary activity of a living thing constitutes its soul; for example, the soul of an eye, if it were an independent organism, would be seeing (its purpose or final cause).
In my opinion:
A Soul is a recollection of several aspects of the human psyche, along with the records of its experiences engraved in its essence. In other words from the moment we are born our souls are ever changing to the details and experiences we undergo in this world... we all experience moments of bliss, sadness, rage, wickedness, divinity, madness, and love. I feel that these experiences mold our souls, and ultimately ourselves to resonate to others who we feel in-tuned with.
I believe the Soul does live on after death, but it takes the form you ultimately exposed it to.
Now I don't pretend to see my theory as an accepted reality, but it does give me peace of mind to understand that the Soul will ultimately be judged, and regardless of preconceived ideas of sexuality it still has the possibility of salvation rather than eternal damnation.
Hence I try as hard as possible to live by these principles and stay on the path of the divine.
1. If you return evil for good, it is devilish
2. If you return good for good, it is human
3. If you return good for evil, it is divine