"All authority in heaven and on earth has been given to me. Go therefore and make disciples of all nations, baptizing them in the name of the Father and of the Son and of the Holy Spirit, teaching them to observe all that I have commanded you; and lo, I am with you always, to the close of the age."

Matthew 28.18-20

 

And the disciples obeyed. For Saint Thomas, his path led him to India, where he was eventually martyred in present day Chennai.  The "Lotus and Cross" project details the religious intersections of India & the Far East: Hinduism, Islam, Christianity, Jainism, Sikhism, Buddism, and on and on and on...