Final answer:
People in the Brahmins caste maintain purity through various practices and rituals, such as following strict rules regarding personal hygiene, diet, and conduct.
Step-by-step explanation:
People in the Brahmins caste maintain purity through various practices and rituals. As priests and religious teachers, Brahmins are responsible for performing sacred ceremonies and upholding spiritual purity. They follow strict rules regarding personal hygiene, diet, and conduct to maintain their purity. For example, they often abstain from eating meat, avoid physical contact with lower castes, and engage in regular religious rituals such as bathing in holy rivers. By adhering to these practices, Brahmins believe they can maintain their spiritual purity and uphold their social status as the highest caste.