Just a note one the reduced sleep.
I find that if I am doing a full daily program of SFQ work, I sleep less. In fact, it has gotten to be a cosmic joke. It is almost like I get awakened, or a nudge, early in the morning. I usually have a wake up dream. They usually are a type of dream that wakes me, and lets me know, sometimes in a humrous way, that I should get up, exercise, and that I will feel good about the day if I do. I guess the master's/teachers have a sense of humor! It gets me smiling right away.
