In order to return his mother, Queen Sirimahamaya who died at seven days after his birth and was born in Dusita heaven. The Buddha spent a full three months in Tavatimsa heaven to recite all seven books called Abhidhamma to devas. The Buddha came back to the earth on the fullmoon day of the eleventh month at the end of the Buddhist Lent.
Colophon:
Folio 25 on the recto side: In Culasakkarat (CS) 1202, a kot chai year, on the first waxing day of the fifth [lunar] month. The writing of this manuscript had been finished in the morning between 6.00-7.30 o’clock. Xiang (Mr. ex-novice) Phomma and his relatives had the religious faith to sponsor the making of this manuscript entitled Pathomsompot, to support the Teachings of the Buddha to last until the end of 5 thousand years. Nibbāna paccayo hotu no dhuvaṃ dhuvaṃ. (May this be a condition for us to reach Nirvana, certainly).