“Lord, I feel you want me to do more of the mystical stuff, ‘entering’ You and so forth.”

Yes, and you can remove the scare quotes.  There is nothing strange about it.  That is how the universe is.  The parts can communicate with the whole.  It is no more mystical or mysterious than your ability to move your arm. 

Actually, since Descartes introduced a sharp mind-body distinction, how the mind moves the body has been a philosophical mystery.  But, in actual life, it is not.  The parts can communicate with the whole and vice versa.  But I had never thought of the universe that way.

I continued to have experiences of divine indwelling and partial union with God.  Now that I am used to them, they do seem similar to getting lost in an experience.  God mentioned music as one example, and we all know that feeling.  Sometimes you are not something separate, standing back and noting the music—you are immersed in it with your whole frame, without reserve.  However, the more radical, “dissolution of self” mystical experiences—I may have had them two or three times—make me uneasy and I avoid them.