Bodhisattva

It’s a person who has taken specific monastic vows on the road to perfected knowledge. In Mahayana Buddhism, Bodhisattva is the Sanskrit term for a being who has experienced enlightenment. A Bodhisattva is anyone who, motivated by great compassion, has generated bodhicitta, which is a spontaneous wish to attain Buddhahood. Or is someone who has attained enlightenment and stays behind to help all sentient beings benefit from enlightenment. In later Theravada literature, the term Bodhisattva is used frequently for someone on the path to liberation.

The great Bodhisattva Skanda (another name for Sanatkumara), also known as Wei Tuo in China, is regarded as a devoted guardian of Buddhist monasteries and protects the Buddha dharma teachings.

Bodhisattva Vow

Sentient beings are numberless, and I vow to save them.
Desires are inexhaustible, and I vow to put an end to them.
The dharmas are boundless, and I vow to master them.
The Buddha way is unattainable, and I vow to attain it.

Wisdom and compassion are inseparable. Wisdom is the realization of the nature of the self and the universe. Compassion is the manifestation of that wisdom as the activity of the universe itself. Compassion keeps the Bodhisattva functioning in the world.