Devotee: It is explained in Bhagavad-gītā that one change body during the lifetime, but we see that a black man never becomes white, or that there is a constant, there is something constant within the body though it changes. What is it? How come this is, changes body but still we can recognize someone from his youth to his old age.
Prabhupāda: So when you further advance you'll find there is no distinction between black and white. Just like a flower is coming out, there are many colors. So it is coming from the same source. As such there is no such difference, but to make it beautiful there are so many colors. In the sunshine there are seven colors, and from that seven colors, multicolors are coming out, origin the one color white, and then so many colors coming. Is that clear or not?