Experience is the mature route.
When I was a young man, many years ago now, looking for a spiritual path offered few possibilities. I knew it was the way home from here but not how to follow it. If you wish to know what a person knows about Deity, ask them what they need to know about the ringing sound inside their own being. Nowadays it seems that almost everywhere one turns, there is this piper or that piper offering this path or that path. Practicing devotion to another being depletes your own spiritual energy.