Grit
Grit is defined as "unyielding courage in the face of hardship or danger" (Merriam-Webster). Within myself and those around me there seems to be a vast amount of sense of hardship and danger related to the upheaval in the US Government and facing physical health challenges. Both of these situations present challenges on how to maintain a sense of strength and hope.

Learning
I typically consider myself to be capable of learning most anything. My brain gets satisfaction from memorizing things (temporarily) and regurgitating it to pass an exam. This served me well as a child, teen, and adult. But this isn't the learning skill Rick is asking us to grow. He wants to help us understand how to change our brains.