Is it necessary to evoke a demon to see it for it to assist me? Or is it okay if it’s just me calling it by chanting it’s enn and then using clairaudience to talk to them?
if you chant his enn and you can hear him, then you’re evoking him
So in general I don’t have to get into tgs and rapture and crossroads…
Some sort of trance or trancidentle state would need to be entered.
What if it’s a light trance?
Darkestknight made an excellent post about the different levels of consciousness: it took me about 5 minutes to find, using the search function. The fact you failed to find this suggests you’re making no effort to find answers yourself.