[Sethomas]

Buddhism refers to the teachings of the Buddha, whose actual name was something like Sidharta Guatama. I"m spelling that wrong, but oh well. Sid never made any profound religious teachings, he merely taught about the philosophical aspects of nature and self-discovery. Like Taoism, these philosophical notes were applied to several different religious factions, most of which actually predate the Buddha himself. For example, the "fat Buddha" as you often see in garden statues actually represents Hotei, a Chinese God of laughter and joy. In real life, Sid was actually quite annorexic.

So yeah, you can apply the philosophy of Buddhism to about any religion you want. Even atheism.