Even they fall down, they are guaranteed best life in the next birth, sucinam srimatam gehe [Bg. 6.41], to take birth in devotee's or nice brahmana's house. So they get again chance. So our point should be why another chance? Finish this business in this life. That is determination. Why another chance? I may be misled again. That should be our determination. "Finish this business, this life. One life let me be strict in following the discipline and regulative principles." This is called tapasya. So "Although it is inconvenient, I must do it to solve my problems." That is determination, drdha-vrata, firm determination.

Srila Prabhupada — May 20, 1975, Melbourne