Agnostic Buddhism (often called Secular Buddhism) is a modern approach to Buddhism that focuses on practice and philosophy, while remaining agnostic about supernatural or metaphysical claims.

Vajrayana (Sanskrit: “Vajra Vehicle” or “Diamond/Thunderbolt Vehicle”) is a branch of Mahayana Buddhism that developed in India around the 6th–8th century CE and later became dominant in Tibet.

Zen Buddhism is a school of Mahayana Buddhism that emphasizes direct experience, meditation, and realization of one’s true nature. Zen began in China as Chan Buddhism, traditionally linked to the monk Bodhidharma (5th–6th century).

The central concept in Mahayana is the Bodhisattva. A Bodhisattva is someone who: Seeks enlightenment (Buddhahood) while chooses to delay final nirvana To help all beings attain liberation first

Theravāda (Pāli: “Teaching of the Elders”) is the oldest surviving branch of Buddhism and is especially strong in Sri Lanka, Thailand, Myanmar, Laos, and Cambodia. It aims at preserving what is believed to be the earliest teachings of the Buddha.