Santeria isn’t a “voodoo practice,” it’s an entirely separate African Diaspora *religion.*
It’s the fusion of Yoruba spiritual beliefs with Spanish Catholic imagery, though there are strains of Santeria that have not been syncretized to Catholic beliefs. Some people don’t even like referring to it as “Santeria” as it suggests some sort of bastard Catholicism instead of the fully-fledged religion that it is. For that reason, it’s also called “Lukumi.”
Santeros worship orishas, who are god-like spirits that “take over” the bodies of their worshippers during rituals. Each orisha has a different personality, a different set of offerings, and a different set of music and drum rhythms.