To possess a soul not your own is to know true dominance, though it goes far beyond simple pleasure. Necromancy’s original purpose was for sight, and though the sight is still an inherent gift of those destined, it is not as well known as their other gifts what the sight of a Necromancer may allow.
What is obvious is very little of what there is; of course Necromancers may see souls as most cannot, yet simply seeing them is a paltry feat. What is greater is truly knowing what one sees, as the soul is so much more than the sphere of light it presents itself as; it is an enduring being. Within each of the innumerable threads that comprise the soul are histories and information beyond common understanding. To truly see a soul is to read these lines—to understand them and to experience what they have experienced.
Those vastly familiar with the sight may tell at a glance which line denotes the very beginning and end of a being’s life, what was most important to them, or how they truly felt about any such thing as mundanity. There is nothing to know about an individual that is not recorded in the soul, and so Necromancers possess the unique ability to, in a sense, live the deceased’s lives at their leisure.
Yet it goes even further beyond reading information, as souls are yet more than the blank sum of their lives. Within them is all that they are, their memories, and even their perception. Necromancers are very literally able to connect with the intimate recollection of a soul—to close their eyes and become that which they are experiencing. This fugue may come to some as mere flashes of recollection, yet those who possess a profound gift for meditation have been known to synergize wholly with a soul and enter into a trance of parallelism. Within their minds, they are living another life many years passed.
Thankfully, reading a soul cannot overwrite one’s own, and when the fugue passes, so, too, do the memories. They may be recalled by the Necromancer as any other memory may, but neither do they intrude on what is right within their minds. It has been previously likened to the reading of a book, and indeed, if one were to possess an imagination so encompassing that they could place themselves directly into the scene of a story, they would not truly become the characters they are emulating. They are still wholly themselves after all is done, and the satisfaction of experiencing such profoundly different experiences is nothing but fulfilling.
For both of these abilities, there are no easy methods of ascension. There is no spell beyond that which allows for the sight in the first place for those commoners, and there is no mnemonic or exterior device that may bestow the ability. It is simply a matter of intuition and practice, and in the case of recollection, of will.