9- Lotus pose as enlightenment ship.
The fascinating thing about the lotus pose (sitting cross-legged on the floor) is that it provides the best balancing foundation for meditation.
It is so not because the spine happens to be in perfect alignment and the soles of the feet are facing upwards (not draining energy towards the earth), but also because the area of the perineum tends to contact the floor (if the pose is done right) and harness the energy of the root chakra.
The root chakra is where all of our energy sprouts from, and as it travels upwards we nourish the brain in our quest for divine intelligence. Some call that the raising of kundalini. The lotus pose is the laboratory for it. It might take years to master, but it is worth it.
Don’t try levitating though. You might hurt yourself.
10- Finally a very practical thing that blew my mind came from B.K.S. Iyengar
He says that for every 30 minutes of asana (poses) practice we must allow 5 minutes of rest (savasana or corpse pose) so that the nervous system has time to come back to normal, quiet, center, and so we are not over-excited throughout our days.
How many of us knew that? But more importantly, in this rushed world, how many of us will respect it?
If you feel like you don’t have 5 minutes of time, then that’s a sure sign you need to rest 10 minutes. Take time to stop. Stop time to take.
And yes, I love men who do yoga. 
