A SIMPLE KEY FOR RIDDLES UNVEILED

Q: I weaken all men for hours each day. I teach you Unusual visions if you are away. I choose you by night time, by working day get you again. None suffer to acquire me, but do from my absence. What am I?The short is a few magician trying to perform a clearly show along with his uncooperative rabbit which is a gag-filled homage to common cartoons f