This answers 99% of questions asked by both beginners and people with some core magickal skills about evoking spirits to tangible manifestation, don’t miss this one if you have ANY questions about whether what you see is real, how the spirits appear, how to use structuring, etc.:
I would also think falling fits in two categories falling to manifest visual and audible manifestations or the task at hand falling. I can evoke with full manifestation both seeing and hearing, my very first evocation I could see the demon not hear but see after that at times I didn’t yet every working yielded results only one backfire out of 100. Believe and you will get results don’t let frustration hamper your efforts even if your not seeing and hearing continue the ritual as if you are and detach results will come I can almost guarantee it.