Creating a purpose for life is important for better mental abilities, enhanced reasons for living, for receiving as well as giving. We cannot just worship whole life. Do we understand this enough? We are granted abilities like thinking, working, walking, planning, etc. If we won't engage ourselves at right thoughts there are higher chances of we making mistakes worthy of punishments. See if I give you a palace of gold but you never live in it, what's the purpose of me giving? If we are given such an expensive brain and we are stubborn enough not to use it, what is the purpose of receiving it at the first place? I am not saying worshipping is any cheaper than science. But that doesn't resolve the whole purpose of living! Do you see that? If you are not going to think then what's the other use of brain you are going to make? It might turn destructive against you or society or both? Is that the idea to stay? Think again! Use your own brain and say science certainly gives a purpose for living.