Each of us somewhere knows that we become like the person we look up to. If that’s the case, I would rather look up only to somebody who has mastered life. Yet better, look up to somebody who has mastered death. Mastering death cannot come without mastering life. Our immortal yogis (besides some Taoist sages) are the best exemplars for having mastered death.
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.