Most Hindus say they were born into Hinduism, but many are non-Indian. People say Hinduism is the belief in an "impersonal Supreme," though many Hindus worship their own personal god or goddess. Some Hinduism followers state that they are monotheistic, though non-Hinduist argue that they are polytheistic since there are over 30 million deities Hindus associate with. The followers of Hinduism believe in reincarnation and caste systems.
Hindus believe in caste systems. Castes rank people on level of importance, wealth, and power. There are four rungs to the caste. However, if you include the lowest caste called Harijans, or "outcastes," there are five rungs. The highest rung being Priests, also called Brahmins.
All castes in order are Brahmins, Khsatriyas/warrios, Vaishyas/landlords, Shudras/servants, and Harijans.