What is the mystery of the first fruit offering?

First fruit offering is your key to dominion prosperity. It will make you discover what it takes to experience the baptism of wealth. Powerfully presented, illustrated in a compelling manner and offered in a digestible form, the mystery of first fruit offering is your guide to prosperity.

Thank you, this is so new to me, the first fruit - I have read about it, but I didn't know the details or the meaning behind the offering. Thank you for this...