Who Is The Cause Of Krishna ?

Giriraj Swami: When I became well enough, I began to accompany Srila Prabhupada on his morning walks. On one, I asked, "We say that Krishna is the original cause of all causes, but some people question, 'Then who is the cause of Krishna?' How do we answer them?" Srila Prabhupada replied, "According to our information, Krishna is the first cause. If you do research and find someone who is the cause of Krishna, we will worship him. But until then, you should worship Krishna."