Why did the Spanish Conquerors wish to impose Christianity on the Indigenous Peoples?

The Spanish Conquerors sought to impose Christianity on Indigenous Peoples primarily as a means of justifying their conquests and colonization, viewing it as a moral obligation to save souls. They believed that converting Indigenous populations would not only civilize them but also strengthen Spain's influence and control over the newly acquired territories. Additionally, the spread of Christianity was seen as a way to unify diverse Indigenous groups under a single religious framework, facilitating governance and assimilation into Spanish colonial society.