As a humanist, I am not dogmatic about things that I do not have good evidence for. But that does not stop me from asking the question of how I came to be. For sure, I have a mother, and my mother has a mother, and on we go. This is an area where philosophy and religion both have staked claims. Now a person may say that their metaphysical stance cannot be taken as a religious position. It is certainly not motivated by practicing religion.