Theravada, also known as "the way of the elders," follows the original and authentic teachings of the Buddha found in the Pali Canon, or Tipitaka
Theravada is popular in Sri Lanka and emphasizes monastic life
In Theravada Buddhism, there is high esteem for techniques of meditation
Monks in Theravada Buddhism are not isolated; they interact via alms, teaching, and temporary vows
Theravada Buddhism places minimal emphasis on devotion or bhakti for the Buddha
The scriptural authority in Theravada Buddhism is the Pali Canon, or Tipitaka, which means "three baskets"
Vinaya in Theravada Buddhism refers to the rules of monastic discipline
Suttas in Theravada Buddhism are Dhamma teachings from the Buddha's sermons, including Jataka tales
Abhidhamma, dating back to the 3rd century BCE, is a learned discourse and doctrinal interpretation in Theravada Buddhism
The goal in Theravada Buddhism is to achieve nirvana or become an arhat
Hinayana
"lesser vehicle"
Mahayana Buddhism is the largest of the Buddhist traditions
Mahayana differs from Theravada by emphasizing the ability of laypeople to make progress towards enlightenment even while engaged in family and social life
Doctrine of Mahayana includes:
3 "bodies" of the Buddha
Universal Buddha-nature
Shunyata ("emptiness"): foundational doctrine stating that all things are empty of self-existence and have no independent existence; founded by 3rd century Indian monk Nagarjuna
Scriptural Authority in Mahayana:
Pali Canon, or Tipitaka
Other texts composed in Sanskrit and translated into Chinese and other Asian languages, such as Heart Sutra, Lotus Sutra, Diamond Sutra, Ugrapariprccha Sutra
These sutras were recorded later than Pali texts, possibly in Sanskrit or even Chinese
Claim that these sutras go back to the words of Shakyamuni himself, passed down orally and recorded much later
Theravadin opinion: these sutras were invented by Mahayanist monks and are not part of the canon
Broad scholarly assessment: either agnostic or non-historical, meaning they are not the literal teachings from the lips of Shakyamuni himself
Goal in Mahayana Buddhism:
Delay nirvana to be bodhisattvas or future Buddhas
Charitably remain within the cycle of samsara until accruing great merit and wisdom to become Buddhas who can teach and liberate other sentient beings
Chan
Chinese Mahayana Buddhism; brought to China in the 5th century by the legendary indian monk Bodhidharma;
origins 5th century CE (legendary figure Bodhidharma);
emphasis on meditation, insight;
wild success in China;
no reliance on scripture or text (similar to Theravada);
Zen
extension of Chan in Japan (dating back to 1200 CE), same doctrine and traditions; Japanese Buddhism; emphasizes meditation as a means of looking into one’s own nature and realizing that it’s identical with Buddha’s; this realization brings enlightenment;
key insight: I and not-I are non-dual (or not different); satori (flash of insight);
mature members sometimes “break rules” because of non-dualism;
koan: puzzle intended to stymie the mind, bring new insight;
no reliance on scripture or text (similar to Theravada);
Pure Land
emphasizes devotion toward Amitabha Buddha and faith that he will bring his devotees to a blissful rebirth in his own pure land, the Western Pure Land known as Sukhavati; popular in China and Japan;
Salvation: escape from samsaric cycle here and entry into the Buddha’s “pure land,” a heavenly paradise of happiness (enlightenment easier).
Stands in stark contrast to the Buddhalogy and soteriology of Theravada Buddhism.
Texts: Pure Land Sutras (circa 100s CE) contemporary with late Lotus Sutra composition;
satori
flash of insight
koan
puzzle intended to stymie the mind
Vajrayana is a form of Mahayana Buddhism, also known as the "thunderbolt / diamond" vehicle
Vajrayana sees the material world as a manifestation of divine energy, identifying with Buddhas, bodhisattvas, gods, and goddesses
Vajrayana is derived from the Tantra religious movement of India
Vajrayana originated in India around 500 CE and later spread to Tibet
Before the spread of Vajrayana, Tibet had a shamanistic religion called Bon, which involved demonology and animal sacrifice
Vajrayana involves tantric practices and invokes the aid of celestial Buddhas, both male and female
For some practitioners, sexual union in Vajrayana is believed to realize nonduality and erase distinctions between male and female
Lamas are the teachers of Vajrayana, meaning "ones who are superior," and are considered Tibet's spiritual leaders, equivalent to "gurus"
Historically, most lamas in Vajrayana had spouses
Around 1350, there was a reform in Vajrayana known as the "Yellow Church," which emphasized more prayer, reintroduced celibacy, and was led by the Dalai Lama
The "Yellow Church" did not have hereditary offices; instead, the head lamas were believed to reincarnate
Deity Yoga is a practice in Vajrayana where practitioners meditate on themselves as a Buddha, embodying their qualities
Vajrayana is famed for political clashes with communist China, which led to the destruction of many of the 6,000 monasteries established in Tibet
Lamas
teachers of Vajrayana; "ones who are superior"; Tibet's spiritual leaders; equivalent of "gurus";
Deity Yoga
Meditate on oneself as a Buddha; embody qualities; (Vajrayana)
The Buddha rejected bhakti as a way of salvation
The Buddha believed that the world had non-human gods, goddesses, demons, etc., but all are finite
The Buddha did not espouse ritual sacrifice or prayer
The teaching of the Buddha did not focus on other-worldly phenomenon like powerful deities, cosmic creation, or eschatology