The main causes of religious reforms included corruption within religious institutions, misuse of power by clergy, and growing dissatisfaction among common people. Many religious leaders lived luxurious lives, contradicting spiritual teachings, which created public resentment. The spread of education and literacy encouraged people to question traditional beliefs. Economic changes and social inequalities also pushed individuals to seek spiritual equality. Additionally, the invention of printing helped reform ideas spread quickly. These combined factors led reformers to call for moral renewal, simpler worship, and a return to core spiritual values.