In Buddhism, refuge or taking refuge refers to a religious practice, which often includes a prayer or recitation performed at the beginning of the day or of a practice session. Since the period of Early Buddhism all Theravada and mainstream Mahayana schools only take refuge in the Three Jewels (also known as the Triple Gem or Three Refuges, Pali: ti-ratana or ratana-ttaya; Sanskrit: tri-ratna or ratna-traya), which are the Buddha, the Dharma and the Sangha.
However, only Vajrayana school includes an expanded refuge formula known as the Three Jewels and Three Roots.
Taking refuge is a form of aspiration to lead a life with the Triple Gem at its core. Taking refuge is done by a short formula in which one names the Buddha, the dharma and the saṅgha as refuges. In early Buddhist scriptures, taking refuge is an expression of determination to follow the Buddha's path, but not a relinquishing of responsibility. Refuge is common to all major schools of Buddhism.
In 1880, Henry Steel Olcott and Helena Blavatsky became the first known Westerners of the modern era to receive the Three Refuges and Five Precepts, which is the ceremony by which one traditionally become Buddhist.
Since the period of Early Buddhism, devotees expressed their faith through the act of taking refuge, which is threefold. These are the three supports or jewels in which a Sutrayana Buddhist takes refuge:
The Buddha, the fully enlightened one (i.e. the figure of Sakyamuni Buddha)
The Dharma, the Buddhist teachings expounded by the Buddha
The Sangha, the monastic order of Buddhism that practices and preserves the Dharma.
In this, it centres on the authority of a Buddha as a supremely awakened being, by assenting to a role for a Buddha as a teacher of both humans and devās (heavenly beings). This often includes other Buddhas from the past, and Buddhas who have not yet arisen. Secondly, the taking of refuge honours the truth and efficacy of the Buddha's spiritual doctrine, which includes the characteristics of phenomenon (saṅkhāra) such as their impermanence (anicca), and the Noble Eightfold Path to liberation.