This Mountain is considered holy by Hindus, Buddhists and Jains. In ancient texts, it is referred to as the center of the world. The reason can be understood from the geographical significance of it's place: within 30 miles radius, are the sources of mighty rivers Indus (north called "Sindhu" in India), Sutlej (in west), Brahmaputra (Yarlung Tsang-po in east), and Karnali (largest tributary to the Ganges in south).
Hindus regard the peak as Shiva's symbolic Lingam or Phallus and worship Mt Kailash, which is the Sanskrit name for the mountain. Bonpos believe the sacred mountain to be the place where the founder of the Bon religion landed when he decended from the sky. Tibetan Buddhists believe Kang Rinpoche, which means Precious Snow Mountain, is a natural mandala representing the Buddhist cosmology on the earth and the Jains believe this is the place where their religions founder was spiritually awakened.
Flora and fauna
There are only four land routes to reach Mt. Kailash.
From Xigatse (accessible from Lhasa or Kathmandu) - Saga - Manasarovar (4 days on a hired jeep, longer by a combination of public transportation and hitch-hiking) or Xigatse - Ali - Darchen (6 days on a jeep)
From Indian border near Uttarkashi (very limited number of Indian citizens every year by lottery system).
from Simikot in Nepal via Purang (only open to people on a costly group tour)
The entry point for Mt. Kailash is Darchen. Located right in front of Mt Kailash, this is the starting point for pilgrims going on the Khora.
The main attraction of the mountain is the pilgrimage circuit around the mountain. It normally takes 3 days and should only be undertaken by the well-prepared and fit.
Mt Kailash Khora (Pilgrimage Circuit) - A pilgrimage to Mt Kailash involves nothing more or less than making circuits around the sacred mountain. The Outer Pilgrimage Circuit (Chikhor) is about 52km, and Tibetans can complete a circuit in a day. The majority of pilgrims try for 13 circuits, if they can. Some pilgrims do a circuit performing Kyangcha (Prostration). While the average circuit takes about 14 hours to complete, those doing prostration can take a couple of weeks. Those seeking to secure their path to enlightenment try for 108 circuits. Buddhists and Hindus travel clockwise around the mountain while Bonpos travel counter-clockwise. Most travelers take three days to complete a circuit.
Day 2 - Drirapuk Gompa - Dolma La - Zutrulpuk Gompa
Drirapuk Gompa - Zutrulpuk Gompa (7-8 hrs)
Day 3 - Zutrulpuk Gompa - Darchen
Zutrulpuk Gompa - Darchen (3 hrs)
Mt. Kailash Khora - the pilgrimage circuit
Lake Manasarovar Khora - another pilgrimage circuit
Weather conditions can change rapidly here and you should be prepared for the worst.
It's unlikely you will have problems with the altitude other than shortness of breath, and less energy than you are used to as you will have been at altitude for quite some time just to get here, however altitude sickness is unpredictable, and you should always keep your plans flexible enough to give your self a rest day if needed.