The term yatri refers
to a novitiate Bairagi, a renunciant ascetic society made up of worshippers of
the deity Vishnu (bhakta). 
As a common term, it refers to a person who is embarking on
a yatra ("journey"; more specifically, a travel of religious
meaning). 
You may also want to read more about Hinduism here.
Be sure to check out my writings on religion here.
 
