All forms of Avalokiteshvara are important and they are considered lucky in the orient too. Of course the main importance for us is his significance to Tibetan Buddhism and it's sacred institutions which are under attack in this era as Padmasambhava prophesied to many masters since the 19th century and even before in pure visions and terma. His main seat is the Potala mountain which in the outward sense only is under malevolent Chinese regime's occupation in Lhasa. Staying on topic as usual here is a link to a booklet I had saved, amongst other things for future use, that is about this particular manifestation but you need to have received the transmission for it from ChNNR:http://www.shangshungstore.org/index.ph ... etail&p=45
It is not just Potala though. He is the protector of the land of Snow, Tibet, against enemies because as he said like India that is where the Buddhadharma resonates most. Of course as we know by his thousand arms his main manifestations are the thousand Buddhas for us lucky ones on earth and we live in the Victor Shakyamuni's glorious fortunate era and have teachers like ChNNR who present the high pure unmixed Buddhadharma.
Dzogchen masters I know say: 1)Buddhist religion essence is Dzogchen 2)Religions are positive by intent/fruit 3)Any method's OK unless: breaking Dzogchen vows, mixed as syncretic (Milanese Soup) 4)Don't join mandalas of opponents of Dalai Lama/Padmasambhava: False Deity inventors by encouraging victims 5)Don't debate Ati with others 6)Don't discuss Ati practices online 7) A master told his old disciple: no one's to discuss his teaching with some others on a former forum nor mention him. Publicity's OK, questions are asked from masters/set teachers in person/email/non-public forums~Best wishes