Praying text for Dorjzoduv

The text was and still is read mostly during a funeral process for a deceased to have him/her taken care of by Buddha in the afterlife and for sending the spirit to the heaven. The text is also read for those who have frequent bad dreams and feelings. Both Tibetan and Mongolian versions were widespread in the past. Now mostly the Tibetan version is in great practical use, the reason for this is unknown.