Magic Forums

I learned about them today, and I am intrested in making them, as they're very easy and usefull... Most likely, I want to use them for spirit communication.
But I have some questions:

First question is, that I want to learn to communicate with a spirit and not with my subconsious. I know that spirits-at communication part control the subconsious-so that's how we get the answers...but I want to learn when it's only my subconsious, or an actual entity...

Second question is, am I able to interact with different kind of entities and Gods/desses, or it's only for human spirits?

Thank you everyone for your help.