I got this out of a book called High Performance Habits. The idea is to release any previous feelings that remain from a previous situation you were in & move to a new situation with an open mind. This goes from walking on stage to walking in at home and leaving work where it belongs.
It also refers to knowing how you want the audience to leave after your keynote. Is it inspired, emotional or … fill in the blanks yourself. If you know in advance, chances are quite high you’ll leave them like that too.
—> I got this intel by getting classes of the infamous PJ Brady, an awesome speaking coach. Definitely follow him on LinkedIn for short lessons on the subject or go wild and book a lesson :).