You have to stay on the platform. Then eternally you are safe. If you fall down from the platform, then it is your fault. Just like we are all in the Vaikuntha planet. Now, we wanted to enjoy this material world. We have fallen down, just like Jaya-Vijaya. Now we are trying to go back again. Therefore we say, "Go back to home, back to Godhead." So everything is… There is process. If you follow the process, then you go back. If you fall down, that is our fault. Therefore the life is meant for tapasya, that Rsabhadeva's instruction, that our life should not be wasted like dogs and hogs and pigs. It should be utilized for tapasya, for understanding our position. Tapo putraka yena suddhyed sattva [SB 5.5.1]. This is the aim of life. We have to purify our existence. At the present moment our existence is impurified. Therefore we are subjected to birth, death, old age and disease. And as soon as we purify ourself, then we are not subjected to these four material laws.
From Srila Prabhupada's lecture on Srimad-Bhagavatam 6.1.1-2 — May 22, 1975, Melbourne