We often say that out life expectancy is PRE DETERMINED . When we are born, it is determined as to when we are going to die. The term that we use is 'IT WAS TIME'. But then we have also heard when a Sage or highly evolved Yogi blesses someone and they have extension of life. We have heard that Jesus Crist has brought back to life a dead person . The same thing we have heard about many others in India like Sai Baba or Yukteshvar or some other Yogi. So if the life is limited and we are to die when it was predetermined at the time of birth, how can ANYONE EXTEND THE LIFE .
The life duration is based on the collection of Karma that are going to come to fruition with which we are born with. We have millions of Karmas that we have collected over period of thousands of life. Not all of them come to fruition in this life. But based on our Intense desires -attachments - VASANA or emotions - relations we are born certain environment- family- society. So when they are FULFILLED or exhausted, then the life ends. Once we understand this principle or accept it , then it is easy to understand my explanation.
The highly evolved souls or the so called SAGES or Yogis, have power to borrow the fruits of Karmas that were not included in this present life and bring them to PRESENT LIFE for fruition. Once we have the fruits that can come alive in THIS LIFE , this life is extended. In short theses Yogis can BORROWES from FUTURE LIFVES. It is almost like we going to casino and we run out of money and then we go out and get MORE MONEY from bank . The bank is our STORED KARMAS- so called SANCHIT KARMA.