We think that putting a pinpoint in a flame will sterilize it. We think all germs, cells and living entities will perish in the fire. But Srila Prabhupada says that even in the sun there is life. There are cars, human beings like us, roads, and buildings. This is proven, he says, by the Bhagavad-gita statement, nainam dahati pavakah (in BGAII 2.23).