A Crystal Opens
The Wapr, while being the plane of existance where Dark Eldarians generally live, along with daemons, and being the fastest mode of transportation in the universe, so far, it is also the name of a very common religion.
The basis of the religion is to be yourself, but preferably a calm, fair, and just person. That’s not to say they frown on murderers being part of their religion, but worshiping Malal or Khorne is probably better for you. Warp members aren’t pacifists, nor are they murderers. They are a nice medium, with leaning one way or the other every now and again.