So in Aaron Leitch's Enochian Grimoire he says that in order to work the Watchtower system and commune with those forces you first have to do some 19 day ceremony to invoke them with your own conjurations and after that you never use the book again and have some simple way to have the spirits do what you want. My question is if this is legitimately necessary, even when working a Dee-Purist method? I've never heard of this outside of what he says, and I looked at supposedly where this rite is described in the Five Books of Mystery and have yet to find it. Haven't seen this spoken of by any of the serious Enochian practitioners here, which is why I'm curious. I'd like to work with these spirits, but I want to also make sure I'm doing it properly in the context of the system and not messing things up.
Thank you in advance.