Hindu wedding ceremonies are traditionally conducted at least partially in Sanskrit, the language in which most holy Hindu ceremonies are conducted. The local language of the people involved is also used since most Hindus cannot understand Sanskrit. They have many rituals that have evolved since traditional times and differ in many ways from the modern western wedding ceremony and also among the different regions, families, and castes such as Rajput weddings and Iyer weddings. The Hindus attach a lot of importance to marriages and the ceremonies are very colorful and extend for several days.