tibetan stone cairns, prayer flags & rock with carved mantra `six syllables of clairvoyance`, thukla pass, everest base camp trek

aah ama ascent auxiliary babu base cairns camp carved chiri clairvoyance dablam dhukla dughla ebc everest fastest flags himalayan himalayas kang karmas lives lobuche lost mantra memorial mount mountaineer negative nepal oxygen pass prayer purify records rock route sha sherpa six stone summit syllable taiga thukla tibetan top trek without world