Tilak
In Hinduism, the tilaka, colloquially known as a tika, is a mark worn usually on the forehead, at the point of the ajna chakra and sometimes other parts of the body such as the neck, hand, chest, or the arm. The tilaka may be worn daily for decorative purposes, as a symbol for sectarian affiliation, for rites of passage or for special spiritual and religious occasions, depending on regional customs. It is also used as an expression of honour or to welcome someone upon arrival.