Burkemann is a good writer he has another good book on happiness the antidote to positive thinking for those who can't stand it.
I came across the word autotelic when reading a book by Pat Farenga based on John Holt's theory of unschooling,he was saying that learning can be its own reward rather than learning to get a good mark in an examination
The hip flexors take a while to loosen,I've been stretching them recently.Trying to correct overpronation of the ankles,I'll make the foot awakening sequence a part of my days,we tend to neglect the feet or atleast I do
I did the exercise where you put your fingers in between all your toes from the foot awakening sequence,my ankles pronate a good deal,I felt discomfort in the ankle afterwards...probably one of the reasons I have difficulty squatting