Know, may God support us and you with a spirit from Him, that when God called Himself the apparent and the hidden, this necessitated that the existential matter for us be between the obvious and the hidden. So what He has made clear to us is the obvious, and what He has concealed from us is the hidden, and all of that is for Him, the Almighty, clear.

The Messenger of God, may God bless him and grant him peace, said in his supplication: O God, I ask you by every name by which you have named yourself or taught one of your creation

which is clear to those whom God has taught it and hidden to those who do not know it

Then He said: Or have you kept it in the knowledge of your unseen ?

This is hidden from what is other than God, and only God knows it, for God Almighty knows the secret, and it is what is between Him and His creation, and it is more hidden, and it is what only He knows, like the keys of the unseen that are with Him, which only He knows.