His impact on the practice of yoga around the world is inestimable. His practice was a delight; his teaching, a challenge; his writing, an inspiration. I will always be grateful for the ongoing guidance that he provided for our practice and study. To say he changed my life seems somehow small. To be in his presence was to be in the presence of greatness. To share his teaching, to the small degree that I understand them is my joy.
Although I have no idea what the family wishes for expression of condolence might be, I might suggest that you hold them and Guruji in your heart during your practice today.
In the Bhagavad Gita, Krishna reminds Arjuna in consideration of the soul... It is not born, nor does it ever die, nor, having existed, does it exist no more. Unborn, everlasting, unchangeable, and primeval, the self is not killed when the body is killed... Therefore, knowing it to be such, you ought not to grieve.
This is a sentiment that is sometimes hard for us to take in, in the face of our loss and grief. But it is certainly one that our dear Guruji lived by. Celebrate his teaching. Let your practice fill you with joy the way that for 80 years his did.