有中文字幕 chinese subtitle available Part of the series from https://www.youtube.com/watch?v=7eXx1nVlfK0
Credit to the owner of the video, I am sharing to keep the precious video for personal reminder and hope can benefits more people.

Old footage of Mahasiddha Drubwang Konchok Norbu Rinpoche's visit to Arizona on the occasion of the consecration of the main temple at Garchen Buddhist Institute in Chino Valley, Arizona.

Drubwang Konchok Norbu Rinpoche (1921-2007)
"As practitioners of this precious Dharma, we need to eradicate all non-virtuous deeds in general, particularly the consumption of meat, as it has the heaviest negative karma. This is because all the livings beings that we eat are actually our own parents who have been very kind to us in many lifetimes. Eating meat is a non-virtuous act with such heavy misgivings that the Buddha Himself also mentioned that consuming the meat of other sentient beings who have been our parents one lifetime or another is the gravest and most heinous deed to commit." *

The great accomplished practitioner Drubwang Konchok Norbu Rinpoche was born in Drikung, Tibet in 1921. He entered Drikung Thil Monastery at a very young age and studied Buddhist philosophy at the Drikung Nyingma Changra Buddhist Institute. After his graduation, Drubwang Konchok Norbu Rinpoche became the disciple of Drubwang Pachung Rinpoche (1901-1988). Under the guidance of Drubwang Pachung Rinpoche, Rinpoche went on many years of retreat and eventually gained the supreme experiential understanding of Mahamudra.

The last years of his life Rinpoche lived in the Drikung Kagyu Institute in northern India. In 1991, he overcame great difficulties and traveled all the way from Tibet to India. In India, he met up with His Holiness the 14th Dalai Lama who requested him to travel to different places to give teachings for the benefit of all sentient beings. Drubwang Rinpoche's compassion and kindness was so vast that he often gave up everything he owns to the sangha community. Drubwang Konchok Norbu Rinpoche did not give tantric Dzogchen. He encouraged and inspires people to do the simplest of all dharma practices: to extend kindness to all sentient beings and to do the practice of the three kayas by reciting:

OM AH MI DEWA HRIH ( Heart Mantra of Amitabha)
OM MA NI PAD ME HUNG ( Heart Mantra of Chenrezig)
OM AH HUNG VARJRA GURU PADMA SIDDHI HUNG (Heart Mantra of Padmasambhava)
...
https://www.youtube.com/watch?v=x1Y-czERMwY