Kumbha Mela witnesses thousands of yogis and sadhus who come down from the deep Himalayas to participate in the world every few years.
I too was surprised when I got to know that many of them have been hanging out for a few hundred years. It has been a matter of deep research interest for me as to what helps them stay hale and hearty and much much more energetic than us for hundreds of years.
One of my spiritual teachers, the legendary Leonard Orr has been researching their lives by meeting up with immortals for a few decades now. I came to realize through Leonard a great deal about their lifestyle. Leonard has lived with them first-hand to have understood their secrets. And one common secret of all immortal yogis is that they create a few hours every day to spend time with the five elements of Earth, Air, Water and Fire.
Working with Earth, Air, Water, Fire and Space is simple but requires some expert instruction. I have trained myself with Masters of the Elements and lots of self-experimentation. I derive immense amount of silence, clarity, energy and power from these simple yet wonderful techniques. Makes so much sense for you to learn too!