"Beans" are points you can earn and redeem for rewards like dollars off your order or for a free product. :)
The equivalence is $1 = 1 Bean ♥
The amount of beans you earn for every order placed is determined by the subtotal of your order. This means that, if you use a discount code, you will earn beans according to the price of your item after the code has been aplied, and also without including the shipping cost.