Over the course of my time as an operative I have developed relationships with several individuals in an effort to diversify the skills available to me. Some in my profession call them assets, I prefer to think of them as associates.
A list of quick personalities for the many faceless NPCs.
The Crew of the “New Hope”, a fine, and not so fine, bunch of seafaring men.
He shuffles along in his ragged clothing, mumbling “Leave me alone”.
Faster than the wind, this Red Cap Messenger flies (okay, okay, runs - but you get the idea).
When you sleep, your soul briefly returns to the place where it was created/goes to when it dies, and seeks nourishment. Everybody's soul is created with a little link (or you could say a greater entity calls it back) to that place so that it can return easily, but upon death, the soul returns via that and annihilates the link as if returns.
Also, as an added thingy, you could say the entity supplying the link, or residue of the links themselves, (whichever) is the source of all arcane power.