Many Bhutanese and other Buddhists make pilgrimage to Takstang at least once in their lifetime, much like Muslims do to Mecca. It's a site that has produced teachings, visions, and discoveries of ancient scripts from times long forgotten, visited by monks and great seers. Milerepa is said to have visited and stayed for a time, along with Chogyum Trungpa who discovered a 'lost' teaching during his visit there in 1968. His teachings have been the foundation stone for much of Pema Chodron's work.
The site has been holy ever since Padmasambhava (Guru Rinpoche) came there to meditate in a cave: where he overcame numerous demons, and through this was able to establish Buddhism in the region. 
I wonder if Jesus may have visited this site during the years before he was 30. Writings exist exploring the idea of Jesus having explored Northern Tibet. The Lost Years of Jesus discusses the possible travels he may have made. Another book, Jesus went to India , talks about evidence found that shows he was definately in India.