What is the difference between a novice and an experienced meditators brain?

In experiences meditators there is less activity in the prefrontal cortex because they accept emotions. In novice meditators l, they try to push away the bad thoughts and have more activity there.

Feeling like I want to do my own meditation tonight as well. Not sure if this is a bad thing as I decided to do only the Jackie guided for the two weeks.

This idea of, this could me my last moment, and my inner reality creates my outer reality struck me today. That I have agency over my own experience in this way.