The body is the essential vehicle for the Jivi to understand its real nature. No single moment that is passed by can be turned back.
People usually delay doing some things, today's till tomorrow, and yesterday's till today.
It is only that Jivi which has engraved this understanding on its heart that can merge in Siva. He will not wish for it, nor even contemplate it. Only those who have this relationship of the Deha and the Jiva are Men. And those who have realised this principle will not flag even to the slightest extent in their Sadhana. These days, man is content with visualising and experiencing evanescent worldly joys.