Dear Jeffry
In general, there are two types of Dharma protectors, enlightened and unenlightened Dharma protectors. Enlightened Dharma protectors are usually the emanation of enlightened Buddha. For example, Dorje Shugden is the emanation of Buddha of Wisdom Manjushri, Palden Lhamo is the emanation of Buddha of knowledge, arts and music, Saraswati, and Mahakala is the emanation of Buddha of Compassion Chenrezig or Avalokiteshvara. Unenlightened Dharma protectors are usually spirits that have been bound by their vows to an enlightened being. Nechung is a good example of an unenlightened protectors that have been subdued by Guru Rinpoche, another example of an unenlightened Dharma protector is Methar who was subdued by Serkong Dorje Chang.
The difference between enlightened and unenlightened Dharma protector is you can take refuge in enlightened Dharma protector, but you cannot take refuge in unenlightened Dharma protector. If one takes refuge in unenlightened Dharma protector, his/ her practice will degenerate.
The function of Dharma protectors is to help sentient beings who have a karmic affinity with them so they can focus on their spiritual practice. In addition, they also have specific functions. For example, Dorje Shugden is as the protector of Lama Tsongkhapa’s teachings, and Palden Lhamo is known as the protector of the Dalai Lama lineage.
Do read more about Palden Lhamo by clicking this link:
Palden Lhamo
Also read about the other protectors of Tibetan Buddhism by clicking this link:
Dharma Protectors of Tibetan Buddhism
Thank you
Valentina
