This body is temporary, but so long this body is there, you'll have to suffer. What is that suffering? The sum total of suffering is birth, death, old age and disease. This is due to this body. Therefore the problem is how to stop this material body, repetition. Today I have got this body, Indian, tomorrow I may get American, next birth... Tomorrow means next birth. Next birth another, next birth another, next birth another—it is going on. Going on. There is no stoppage, this transmigration of the soul.
But so long you do not stop it, there is no question of being freed from sufferings. They do not know it. They are thinking they are advancing. What advancement you have made? These sufferings are there—birth, death, old age and disease. You cannot stop it. Ābrahma-bhuvanāl lokāḥ, and even you go to this moon planet or to the highest planet, these four things will follow. So therefore sense gratification must be stopped. But if you want to stop it artificially it is impossible. Neither by this yoga process, neither by this jñāna process. Simply for the time being you can check.