You can define priming as "conditioning your mind into the right state through deliberate actions". I've been experimenting with priming before workouts and every morning. Morning priming is a little deep and introspective, here's how it works:
Gratitude - 1 person, 1 incident and 1 resource
Focus on death - the big picture
Goals and WHY
Todo List
"What can I get excited about today?"
"What do I want to feel today?"
"Which weakness do I want to work on today?"