Rewards are just about the best thing since Katy Perry. When you become a patron to a creator, they will often have different rewards they've crafted just for you! This could be anything from pre-sale concert tickets, downloads, personal gifts, hangouts, hand written notes or anything else they can offer as a way to thank you for your patronage.
You can choose a reward tier equal or lower to the amount you signed up to pay. Say you pay $10 to a creator - that means you can choose the $10 reward, any lower reward, or go wild and choose no reward because you're a baller who just wants to give money to creators. If you choose the $10 reward, you'll have access to all the rewards below it as well. Ca-chinggg.
Gosh. Rewards are so... rewarding. ;)