'My body is giving up on me. Thankfully, a byproduct of my research has given me a method to continue living without flesh and blood.
This discovery comes from the phylactery. The soul is quite the strange thing, it is possible for it to exist within a material object rather than the body.
Certain materials are more suitable as a phylactery, though my initial wish was to use an incredibly tough material, it turns out that it becomes a cage for the soul. The phylactery must be made of something soft and malleable to be suitable for magic casting.
My choice was to use a very soft phylactery, but that comes with the inherent weakness, how easily it is broken. But that cannot be helped.
The body is not anything special, it is simply material. The only reason it holds the soul is just by coincidence. One can still pilot the body from a distance so long as the soul is attuned to magic and has access to mana.
With my newfound phylactery, I can use mana to control objects.