The Birth Anniversary of Guru Rinpoche, also known as Guru Padmasambhava, is one of the most significant celebrations in Bhutan. Guru Rinpoche is revered as the 'second Buddha' in Bhutan and is considered instrumental in spreading Buddhism throughout Bhutan and Tibet in the 8th century. This special holiday, flagged on the tenth day of the lunar calendar, typically falling in June or July, commemorates the birth of this venerated figure.

On his birth anniversary, Bhutan tunes into a festive mood with a variety of cultural and religious activities conducted nationwide. Celebrations consist of traditional masked dances and rituals performed by monks and nuns in Dzongs (fortresses) and monasteries. Regular citizens also participate in the celebrations by lighting butter lamps, offering prayers, and making offerings to the Guru at local temples to invite blessings and prosperity.

The Birth Anniversary of Guru Rinpoche is not just a public holiday in Bhutan, but it enhances the nation's cultural heritage and devotion towards its spiritual identity. It's a day when the kingdom's tradition and faith surface vibrantly, connecting the people more deeply with their historical roots and spiritual ethos. It ultimately serves as a reflection of Bhutan's unwavering dedication towards preserving and promoting its rich Buddhist history.