Hand pray emoji means a guy with a folded hand or for muslims a guy praying with two open hands. Prayer emoji having two hands joined together represents the spiritual as well as religious aspect. In muslims prayer is done with two open hands so the prayer emoji which represents muslim prayer is with two open hands.
What actually happens is that Hand pray emoji makes it eaisy for a person to do chatting eaisly with minimum typing of words. With the help of hand pray emoji, people of every religion can show their spiritual emotions in single picture. Beautiful hand pray emojis also make the conversation look extraordinary.