The bodhisattva (Sanskrit: bodhi β awakening, sattva β being) is the central figure of Mahayana Buddhism β one who has generated bodhicitta (the mind of awakening) and committed to attaining full Buddhahood not for personal liberation but for the benefit of all sentient beings. The bodhisattva vow β "I will attain enlightenment for the benefit of all beings" β is the defining act of entry into the Mahayana path.
The bodhisattva ideal represents a radical expansion of the Buddhist ethical vision β from the Theravada goal of personal liberation (nirvana) to the Mahayana goal of universal liberation. The bodhisattva remains in the cycle of existence (samsara) voluntarily β not because they are unable to escape but because they choose to return again and again to serve beings until all are liberated. The great bodhisattvas β Avalokiteshvara (compassion), Manjushri (wisdom), Samantabhadra (activity), Ksitigarbha (service to those in suffering) β are both ideals and active presences that practitioners invoke and aspire to embody.
Practically, bodhicitta (the awakening mind) has two aspects: relative bodhicitta β the genuine compassionate intention to benefit all beings β and absolute bodhicitta β the direct recognition of emptiness (sunyata) as the nature of all phenomena. These two aspects are understood as inseparable: genuine compassion without wisdom produces sentimental attachment; genuine wisdom without compassion produces arid indifference. The integration of the two is the heart of the Mahayana path.