Luna wn 50%v
I think a scale could even be made where the nature of the entity responding can be reasonably well identified by how subtle and rarefied or literal/material the result. Which would help answer the question (if it’s a question that needs asking, of course) “when is it appropriate to consult an angel, when a god, and when some other sort of spirit?”
Depends on the kind of stimulus/response you most need. And if you know that part, you already know something important.