Sadhguru: If you pay a little attention to the process of life, you would not need any purpose. There are so many unbelievable things happening within you. 

If you pay enough attention, life is so phenomenally intricate that it will keep you busy for a million years or more...

...The purpose of life is to live and to live totally. There is no other purpose. To live totally does not mean to party every night. 

To live totally means that before you fall dead, every aspect of life has been explored...

...Before you fall dead, even if you do not explore the cosmos, at least the piece of life that you are, you must know it in its entirety

. That much you must do to yourself - that you experience all dimensions of what this is - not leaving anything untouched. That's a good enough purpose.