The first part tells the invitation words to say at the ceremony for worshiping Indra and the four heavenly kings and inviting them to come to receive offerings. The four heavenly kings are called “Thao Chatulokkaban or Chatumaharaj”, each of whom is believed to watch over one cardinal direction of the world such as Phaya Dhataratha of the east direction, Phaya Vilulaha of the south direction, Phaya Vilupakkha of the west direction, and Phaya Kuvela of the north direction. The second part describes how to practice on the 40 subjects of meditation.