Bhastrika Pranayama was the method along with introspective meditation but it was not done to completion before his body became unfit. Many seekers think that meditation is the way to go. They do not understand the value of breath infusion.

Driving a car is more important than setting the timing of the engine correctly. At least that is what most people believe.

With a car it is purchased new with the timing set, so that the buyer does not have to tinker with the timing belt. However as the vehicle ages, there comes a time when the timing has to be rechecked. In addition if the performance should be upgraded, a mechanic will have to set the timing to different specifications.

For yoga however, the burden of the reset rests with the student. That is a problem, unless the student can reset it in some other way or unless some teacher can do the resetting the way a mechanic can help the owner of the vehicle.