While Buddhist traditions vary widely, most stem from the teachings of the original Buddha, Gautama Buddha. These spiritual practices aim to overcome suffering as well as the endless cycle of death and rebirth (which only leads to more suffering). When individuals attain Nirvana, they may finally break the cycle, thereby becoming fully liberated.
Unlike other religions, Buddhists do not worship gods or deities, nor do they emphasize sin as a roadblock to faith. Instead, they believe that attachment prevents people from achieving enlightenment—thus, in order to attain Nirvana, one must free themselves of worldly ties. The lack of a god compels some people to refer to Buddhism as a philosophy rather than a religion, but most can at least agree that it is a belief system and spiritual practice.
More than 500 million people practice Buddhism, so even if you're not a follower or don't plan to become one, the religion is a major force in the world and definitely worth learning about. As an added bonus, Buddhists don't believe you will be doomed to hell if you opt not to follow. So, Buddhas, Bodhisattvas and non-Buddhists alike: See how much you know about the belief system with the following quiz. Just wait—you'll see how truly Buddha-ful it is.