This historical gathering of the three virtuous lamas is called Yuksom, which in Lepcha means the 'The Place where the Three monks met' as in Lepcha a lama is called a "Yukmun" and three is called "Som".
On this occasion, the Lepchas and Magarsof the area, who had accompanied Phunshog to Yuksom Norbugang for the coronation ceremony, had presented a large number of treasures to the lamas, particularly to Lhatsun Chempo.
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It was erected following the crowning of the first Chogyal of Sikkim in 1642 at Narbugong Coronation Throne near Yuksom.