“God exists, if only in the form of a meme with high survival value, or infective power, in the environment provided by human culture.”
— Richard Dawkins
Simplified Meaning:
Imagine you have a really great joke that you tell your friends. This joke is so funny that they go and tell their friends, who then tell their friends, and so on. Soon, lots of people know this joke because it’s easy to remember, share, and it makes people laugh. Think of the idea of God or religion like that joke. It’s something that people talk about, remember, and pass on because it means a lot to them, fits with their culture, and helps them understand the world. This idea, like a joke, spreads from person to person and keeps existing because it sticks in people's minds. So, even if God is just an idea, it continues to live on and be important because people keep sharing it with each other. This is how ideas can survive and thrive in human culture.