Ephesians 1:18

The eyes of your understanding being enlightened; that ye may know what is the hope of his calling, and what the riches of the glory of his inheritance in the saints.

Revelations come to us when we have consistent and constant contact with the word of God.  Our understanding opens, and we know that God’s word is real and can be trustworthy.  We see beyond the word, and it develops into a knowing, and faith comes because we now see and understand what we couldn’t before.