Basically you sign up to order at least 50PV per month (instead of just once a year). If you do it consistently, there are rewards.
I signed up for essential rewards the first month I joined and am so glad I did. I was excited every time I was able to experience new oils. They are all so incredible and holding them, smelling them, it is such an amazing thing. I still get giddy every time I get an opportunity to smell a new oil.
If you wish to work the business of Young Living and receive a paycheck, You will need to order a minimum of 100PV a month. You can still build your business without doing this, but to receive a commission paycheck, you must order 100PV.