Meghalaya's main ethnic communities, each having its own distinctive customs and cultural traditions are the Khasis (of Mon-Khmer ancestry), the Garos (of Tibeto-Burman origin) and the Jaintias said to be from South East Asia. The common trait binding all three communities is its matrilineal system in which the family linage is taken from the mother's side. The people of Meghalaya are known to be hospitable, cheerful and friendly. The Jaintias and Khasis have the same religion, although the Jaintias are more influenced by Hinduism. They have a superstition that the Jam, like the Khasi Then, is an evil spirit bringing riches to its owner and disease or death to its enemies or victims.
The Garos believe in one supreme Creator, Rabuga, who is the sustainer and commander of the world. The other spirits are the representatives of the supreme Creator. The spirits connected to the Garo's agricultural life, are appeased by sacrifices but never worshipped. The headman is an integral part of the village and acts as religious head. However, many members of the Khasi, Jaintia and Garo communities have converted to Christianity and one can see a number of churches as well as temples, mosques, gurudwaras and monasteries in Meghalaya.