Too many people say 'science is the how and religion is the why.' I don't think that's true. Pretty much any hypothesis is a why question. The how question is clarification to the why question. Why do things fall? Answer: The law of universal gravitation. How does gravity work? Answer: the theory of gravitation.
You can even apply this to social sciences. Why should we treat others kindly? Answer: a stable social group is healthier and more capable and adaptable, that benefits all. How does it benefit? Answer: Sociological studies on group mechanics.
What the religious really mean when they say 'why' isn't really a why question at all. It's one they frame and then assume the answer to their own satisfaction. Does the universe have a higher purpose than its own governance? To which they say 'yes, god(s) makes it so.'