“Now, Bhagavad-gītā also confirms that, once begun, this spiritual life, then he’s not loser in the sense that his human life is guaranteed in the next birth. In the ordinary duty, you do not know whether you’ll have again this human body or not. There is no certainty. That will depend on your quality of work. But here, if you begin your spiritual life, sacrificing all other duties, then your next life as human being is guaranteed, guaranteed.”

660405 Lecture – Srila Prabhupada Speaks a Nectar Drop in New York