This study is intended to just understand more of the importance of established religion in Bhutan based on the outline of Buddha’s teaching and the natural course of approach towards the preservation of the religious culture through the centuries in the simplest manner with regard to brief history of Buddha or the origin of Buddhism in Bhutan and in Korea. Having said that, the origin of Buddhism in Korea is fascinating ever since the Koguryo22) period in the early 4th century although there are traces of proofs that Buddhism existed even before that. I understand that Buddhism in Korea is a perplex subject and need strenuous in-depth study, thus, this paper is based simply on the general aspect of Buddhism and due to limited source of references and adequately time-bound, I decided to add only certain subtle general facts. The study of Descending Day of Lord Buddha (Lhabab Dhuechen) celebration in Bhutan is considered one of the most important sacred days and religiously interesting how the people of Bhutan commemorate the day Buddha descended from heaven for the benefit of all sentient beings on this day. On the other hand, Yeongsanjae celebration in Korea is the highest and largest re-enactment of Buddha’s teachings expressing values of Buddhism in respect to development of self-discipline. It is interesting to witness an elaborate session of how Yeongsanjae is celebrated especially the dissociation of different episodes of events inculcating dances, singing and rituals. Buddhism and religion as a whole is a vast and complex subject. This paper is a study of the general aspect of Buddhism establishment and its role in the daily lives of Bhutanese people and how it affects the culture and tradition in many ways. Similarly, Korean Buddhism is an interesting subject but needs immense in-depth study for a significant result. Since, it was crucially time-bound and short of source of relatively substantial references, because of the fact that many published books still awaits translation to foreign language(s) (English), this study is compressed with only subtle details.