Abstract

                         This thesis was a qualitative research studying data from Tipitaka and documents related to this thesis. This study consisted of three  purposes. They were to study (1)  Ubosadhasila  in Theravada Buddhism (2)  Dhamma of supporting   Ubosadhasila  in Theravada Buddhism  and (3)  analysis  of  Dhamma  to  support Ubosadhasila  of  Worshipers in  society. The results showed as follows:

1.             A  study of Ubosadhasila  in Theravada Buddhism was founded that

there were  five kinds of Ubosadhasila : (1) a  Patimokkha praying of monks on the fifteenth day of the waxing moon of the eighth lunar month is called Ubosaddhakanm (2) Ubosadhasila  consisted of eight elements (3) keeping the precepts by the fasting was called Ubosadhasila maintenance. (4) Name of the elephant family whose color was golden was called Ubosadha family elephant, and (5) a day of precepts keeping or fasting was a very vital day of Buddhism. They were the eighth lunar month ( Adthamee day ), the fourteenth lunar month ( Jatutthasee  day ),  and the fifteenth lunar month   ( Bannarasee day)

2.             According to Buddhism scriptures, only three kinds of persons in the Buddhist  

era kept Ubosadhasila. They were Prapodhisadhto, the King with Royal ceremonial bath of purification, and laypeople. The advantage of Ubosadhasila  caused huge benefits because it could create the heaven, balance, and security to the human.

3.             Dhamma of supporting Ubosadhasila  in Theravada Buddhism was founded that

the principle of Dhamma existed naturally. Buddha only discovered, followed, and told the others what he had already known. When people knew and followed resulting in  the same effect: (1)  maintaining the happiness to Dhamma keepers, (2) being a costume of mind beauty, (3) developing a way to become the Kanlayanachana, and (4) eliminating   the evil of the mind.The principles of  supporting  Ubosadhasila  in  Theravada  Buddhism as wre Prommavihanra 4, Samacheeva, Kammasongvorn, Sajja, Dhammiubkara 2, Apannakapdhipatha3, and two Dhamma for good-looking would help laypeople keep Ubosadhasila perfectly.

                         The analytical study  of  Dhamma  supporting Ubosadhasila  of  laypeople was founded that Sajja was a vital rule of praying Dhamma as sanctity of prayer and the practice as Buddha taught. Dhamma in the practice of meditation consisted of three paths of exploration. They were organic care,  consuming care, and  persistence with consciousness.. Therefore, Ubosadhasila keepers would keep strictly Buddhist precepts. Dhamma of controlling  four actions  was controlling the sexual behaviours,  patience and Sorujja. The principles of Dhamma  in life were Prommavihara 4, Sammaacheeva and Dhammalokbala for Ubosadhasila keepers  to practice from the beginning to the final stage. They were Dhamma praying for the sake of happiness to the others, meditation, behavior control, Dhamma listening and conversing, and  living with the above mentioned Dhamma causing good benefits to Ubosadhasila keepers forever.