This is sweetly written, revelation is like knowing the incredibly hidden things that's far away from our mind and imagination, bringing to present, it's like a flashback to the secret things, and people like Joseph and Daniel possessed the spirit of excellence, and by this, they were able to unravel mysteries.
Revelations can help one change the future and find grace, God of course is the ultimate revealer of all mysteries as well and in him, we will find the ultimate secret to our life, that can wrought ultimate freedom.