Buddha is an epithet, which means "awakened". The Buddha is often described as enlightened which suggests that he had access to some higher knowledge. However, he was really just awake, as a famous story about him makes clear. Thus, the Buddha's higher knowledge apparently derives from his ability to be awake, suggesting that other people live in a state resembling sleep. They Live depicts
道可道，非常道
"The way that can be named is not the true way"