According to local legend, the location of this monastery is the holy place where Avalokiteshvara revealed himself as "the self-emanated form of the Wrathful Hayagriva".

At its left is the oblation of the river like the Ganges, possessed of eight attributes, reflecting the satisfaction of all noble sons of the land in the Dharma.

The lower terrace of the plateau is protected by Mentsuen, auguring good and plentiful harvests, while the wealth of the people on the land is indicative of the abundance of food.

In front, the meandering of rivers represents voluntary oblations, and the leafy tree of the forests reflects the increase in experience.

Concurrently, he witnessed the cliff in the form of god Tandin (horse head or Hayagriva) engulfed in flames.

The prophecy also mentioned that Zhigpo would marry the Dakini, Khando Sonam Peldon, and establish the Drukpa Kagyu School of Buddhism in Bhutan.

[2] It was only in 1222 that the place again got its recognition when Phajo Drugom Zhigpo, propounder of the Drukpa Kagyu School of Buddhism, witnessed the cliff in the form of god Tandin (horse head) or Hayagriva.

[7] Shabdrung Ngawang Namgyal migrated from Tibet to Bhutan in 1616 at the age of 23 not only at the request of Pal Yeshay Genpo but also due to a conflict with Deb Tsangpa of Tibet; Namgyel belonged to a respectable lineage of Tsangpa Jarey in Tibet and had been christened by the name of Drukpa Rinpochhe Ngawang Tenzin Nampar Gyelwa Jigme Drak Pai Dey and had attained name and fame from a young age as an enlightened dharma preacher.

[4] Following his victory, Shabdrung Ngawang Namgyal adopted the title of Dujom Dorjee, consolidated his powers and issued sixteen tenets.

Thereafter, in 1620, Namgyal built the Chari monastery and the Duduel Chorten in memory of his father; the building was constructed by skilled carpenters brought from Nepal.

[5] Gyalse Tenzin Rabgye son of Tshewang Tenzin and Damchoe Tenzima (daughter of the Lama of Chang Gangkha) born in 1638 AD, received religious instructions from a very young age in the Drukpa Kargyud tradition from Shabdrung and his teacher Damchoe Gyeltshe and was very proficient in the tradition when he ascended the throne of Desi at the age of 31.

[1] In 1966 AD, the 64th rJe Khenpo Jamyang Yeshey Sengyel along with Her Royal Highness the Grandmother Ashi Phuntshog Chodon also restarted the Shaydra School of Buddhist Studies.

In 1977 AD, Her Majesty the Queen Mother Ashi Kesang Wangchuck refurbished the monastery into a very elegant structure vis-a-vis the original.

The monastery underwent restoration again in the mid 1990s and is currently the residence of the 7th Tri Rinpoche, a young incarnation of Tenzin Rabgye.

[1][5] Tango Monastery is built in the dzong fashion, and has a characteristic curved (semi-circular) outside wall and prominent main tower with recesses.

[1] The caves, the original place, before the monastery structure as it exists now was built, is where the holy saints meditated from the 12th century onwards.

Other self emanated divine forms identified within the caves consist of: the Pal-khorlo-dompa (Sri Cakrasambhara gods seen even now); a long cavernous passage in the basement that makes a distinction between the good and the evil while manoeuvring through it; the projecting rock face in the form of Hayagriva directly facing the valley denoting Abhicarya in ferocious shapes; a temple of Hayagriva at the lower level; crystal images of tutelary deities; a three-faced Hayagriva (discovered by Ngawang Tenzin); a whip containing combined prayers; a stone slab with foot print of a dakini (the youngest daughter of Ngawang Tenzin); a temple of the four handed Mahakala at the upper cave created by the Shabdrung, a hazardous cave at the bottom – a fit place for hermits; and a large sandalwood tree, considered as walking stick that was planted by Phajo Drukgom with the prophecy that "This will be the centre from which the Drukpa Kargyud doctrine will spread".

[2] On the ground floor in the Tulku lhakhang, is the temple of Trulku where the main deity is of Buddha made in gold and copper.

Flanking the main deity are a clay Buddha Dipankara cast in medicinal metals and a statue of Maitreya (double the height of a man).

Life-size statues of the 8 chief spiritual sons of the Buddha (the Jang Sem Nye Wai Say Chen Gyad (Jamyang), Chador, Chenrizig (Avaloketeshvara), Namkhai Nyingpo (Akashagarba), Dripa Namsel, Saye Nyingpo, Jamba and Jampel Zhenu Jurpa) are also located here.

"[2][5] On the second floor, the statue of Avalokiteshvara – the Buddha of compassion – made (by Panchen Deva of Nepal) of gold and copper is installed in the Longku lhakhang.

[2] On the third floor, there are temples of Dharmakaya and a gold and copper statue of Buddha Amitayus (made by Panchen Deva).

Buddha image is flanked by a statue of Zhabdrung Ngawang Namgyal and a life-size clay figure, made with medicinal metals, of Gyalse Tenzin Rabgye.

The observances by the monks are in the form of their wearing ceremonial yellow robes, do elaborate chants of prayers before and after eating (eating meals from begging bowls), desist taking the afternoon meal, do not leave the precincts of the monastery, and not involve in any kind of entertainment on holidays; such observances are deemed to accumulate great merits.