I was wondering if Srila Prabhupada ever explicitly said "no" to doing Pranayama and Hath-yagasanas regularly. I know that he believed in Ayurveda and followed an Ayurvedic lifestyle as closely as possible, but was he averse to doing Pranayama/Yogasanas for maintaining one's health?
Many times in his purports he makes reference to modern yoga societies and their failings at practicing real yoga, so he was quite against it as a spiritual practice. As an exercise, I don't know, but I doubt Prabhupada ever said anything on it.
My impression is that Srila Prabhupada had to make clear that hatha yoga per se is not a spiritual process for this age. And we shouldn't focus on that as spiritual practice and waste time. Otherwise he was very practical taking his daily walk for health. Btw I am doing 30 mins hatha yoga and pranayama everyday for some time now and tell you it as been tremendous help for my health and consequently in my service to Krishna. Consequently I consider it a good time investment. I do not think it is set on stone, just be practical.
Śrīmad Bhāgavatam 7.15.31 Purport "The Hare Kṛṣṇa mahā-mantra, however, may be chanted at any place and any time, and this will bring results very quickly. Yet even while chanting the Hare Kṛṣṇa mantra one may observe regulative principles (of hatha yoga). Thus while sitting and chanting one may keep his body straight, and this will help one in the chanting process; otherwise one may feel sleepy."
