Theravada and Mahayana

To preserve the monastic order, the Buddha set down 227 rules for a bhikkhu (monk) to observe and 311 for a bhikkhuni (nun). Before his death (known as parinirvana) he said that some minor rules could be changed.

Within a short time of his passing away there was disagreement over what could be changed and different sects emerged. The more reformist sects later called themselves Mahayana (greater vehicle) and referred to the conservative sects as Hinayana (lesser vehicle). The only conservative sect remaining today is Theravada, which is prevalent in Sri Lanka, Burma and Thailand. Theravada recognises the Pali Canon as its scriptures and a variety of ancient Theravadin commentaries.

Whereas Theravada spread to the south and east, Mahayana moved to the northwest through what is now Pakistan and Afghanistan and then across Central Asia to China, Tibet, Vietnam, Korea and Japan. For historical reasons, the language of Mahayana scriptures was Sanskrit and that of Theravada was Pali. Hence the difference in spelling of some common Buddhist terms: Nirvana/Nibbana, Sutra/Sutta, Karma/Kamma, Dharma/Damma, etc. Westerners are more familiar with Mahayana Sanskrit terms.

Mahayana also has its own scriptures in addition to the Pali Canon, the most important of which is the Lotus Sutra. These sutras are purported to be the Buddha's secret "higher" teachings, which were handed down only to those who were ready for them - an idea emphasised at the beginning of the Lotus Sutra.

Apart from a modified monastic code which made monasticism possible in harsh environments such as Tibet, Mahayana emphasises the Bodhisattva Ideal, where a man vows not to achieve final enlightenment until all sentient beings have been saved. So anyone helping others to achieve enlightenment can be considered a bodhisattva. In Theravada, the term bodhisattva usually refers only to the historical Buddha in his previous lives. Historically, some Mahayanists consider Theravadins to be selfish for seeking enlightenment only for themselves, while some Theravadins consider Mahayanists to have deviated from what the Buddha taught.

The various sutras and sects of Mahayana reflect different ways of reaching enlightenment appropriate for different people with different levels of ability. Because of this, a number of "mythical" buddhas and bodhisattvas are revered and used as objects of meditation. Theravadins revere only the historical Buddha and only his image is seen in temples.

Mahayana tends to emphasise the concept of sunyata (void-ness) in its teachings and tends to have a more specific idea of what passes from rebirth to rebirth (consciousness, comprising awareness and memory).

Personally, I found that the more I read about Mahayana and the Tibetan tradition known as Vajrayana, the more I accepted that all sects are going in the same direction and there is no point in considering any one of them better than another.