I have many thoughts on why it is difficult to practice alone. I think this was the hardest adjustment I had to make after returning from Mysore. Philadelphia at this moment does not have a strong Ashtanga community, each student (that I know of) is homeless in a way. I crave community. I love practicing in a crowded room feeling the pulsation of energy everywhere. I hope that when I return from India in October there will be a place to go and quietly practice.