Just the word itself is enough to force me back under my bedsheets for the day. There's just no escape from the brain when it winds up and gets its gears going.
Or is there?
One of the most practical bits of pranayama (breathing practices) I've ever encountered is what I refer to as "Yin Breathing." Imagine your inhale moving from your heart to your pelvic floor, then bouncing from there back to your heart on the exhale. This is your orbit. This is where you live. This is where you are led.
Your head is just up there, holding your eyes, offering you navigation through cardinal directions. Don't consult it otherwise.
It knows nothing of the heart.