Guru Amar Das became the third Sikh Guru in 1552 at the age of 73. He adhered to the Vaishnavism tradition of Hinduism for much of his life, before joining the commune of Guru Angad. Goindval became an important centre for Sikhism during the Guruship of Guru Amar Das. He was a reformer, and discouraged veiling of women's faces (a Muslim custom) as well as sati (a Hindu custom). He encouraged the Kshatriya people to fight in order to protect people and for the sake of justice, stating this is Dharma. Guru Amar Das started the tradition of appointing "manji" (zones of religious administration with an appointed chief called "sangatias"), introduced the "dasvandh" ("the tenth" of income) system of revenue collection in the name of Guru and as pooled community religious resource, and the famed "langar" tradition of Sikhism where anyone, without discrimination of any kind, could get a free meal in a communal seating. The collection of revenue from Sikhs through regional appointees helped Sikhism grow.