Jain Priests - 1867
This chromolithograph is taken from plate 27 of William Simpson's 'India: Ancient and Modern'. Jainism is of one of the oldest religions in India. Jains are followers of Mahavira (599-527BC), who was a contemporary of the Buddha. A central tenet of the religion is 'Ahimsa' or non-violence and Jains have extreme respect for all life. Jain priests cover their mouths with a cloth to avoid inhaling and therefore killing insects.
Source : British Library
these are not jain priests but jain monks & jains are followers of 24 tirthankaras including Mahavir Swami
Priests are people that perform prayers and other rituals in the temples. Please visit any Jain temple and you will find a 'pujari'. They may be married. Monks are the saints that spread the Jainism teaching and travel from place to place except the rainy season. They are not married.