How do I select a meditation within a Mission?

When you start a session within a Mission, opt for a Primer with a meditation before your Train Program for optimal results. 

1. You will have the option to choose a Primer before your Train Program. 
2. Some Primers can be paired with meditations. 
3. When selected, the Session time will display the total time of the Primer + Train program. 
4. The Session will smoothly transition from the Primer (optionally with a meditation) into the Train Program with audio and in some cases, visual queues.

You can use the complementary Boosts as standalone Sessions.