It is also more than some vague idea of meaning or value. It is about where we came from, why we live, and where we will end up. Without God, we are trapped in evil, sin, suffering, and death. But, through Jesus Christ, we can be saved from our afflictions and receive eternal life. This means that we have nothing to lose and everything to gain.
All religions are pretty much the same.
Different religious traditions often offer completely opposite answers to our problems. For example, one religion teaches about a heavenly after life, while another denies that heaven exists at all. Like gravity, religion isn't just a matter of personal taste, where your opinion is as good as the next person's. Because our religious belief determines our destiny, it must be firmly rooted only in the absolute truth. Either this is true or this is a lie.