wider period of uncertainty for the composition, between 100 BCE and 500 CE.
Patanjali's yoga is known as Raja yoga, which is a system for control of the mind. Patanjali defines the word "yoga" in his second sutra, which is the definitional sutra for his entire work:
yogaś citta-vitti-nirodhah
- Yoga Sutras 1.2
This terse definition hinges on the meaning of three Sanskrit terms. I. K. Taimni translates it as "Yoga is the inhibition (nirodhah) of the modifications (vitti) of the mind (citta)". Swami Vivekananda translates the sutra as "Yoga is restraining the mind-stuff (Citta) from taking various forms (Vrittis)." Gavin Flood translates the sutra as "yoga is the cessation of mental fluctuations".
Patanjali's system is also referred to it as "Ashtanga Yoga" ("Eight-Limbed Yoga"), from the eight steps he set out as the practical path towards attainment of enlightenment. This eight-limbed concept became an authoritative feature of Raja yoga from that point forward, and is a core characteristic of practically every Raja yoga variation taught today.
Patanjali's Eight Limbs of yoga practice are:
(1) Yama (The five "abstentions"): violence, lying, theft, (illicit) sex, and possessions
(2) Niyama (The five "observances"): purity, contentment, austerities, study, and surrender to god
(3) Asana: Literally means "seat", and in Patanjali's Sutras refers to seated positions used for meditation. Later, with the rise of Hatha yoga, asana came to refer to all the "postures"
(4) Pranayama ("Life Force Control"): Control of prāna, life force, or vital energy
(5) Pratyahara ("Abstraction"): Reversal of the sense organs
(6) Dharana ("Concentration"): Fixing the attention on a single object
(7) Dhyana ("Meditation"): Intense contemplation of the true nature of reality
(8) Samadhi ("Liberation"): Super-conscious state of enlightenment
Hatha Yoga Pradipika
Hatha Yoga is a particular system of Yoga described by Yogi Swatmarama, a yogic sage of the 15th century in India, and compiler of the Hatha Yoga Pradipika. Hatha Yoga is a development of, but also differs substantially from, the Raja Yoga of Patanjali, in that it focuses on shatkarma, the purification of the physical as leading to the purification of the mind (ha) and prana, or vital energy (tha). In contrast, the Raja Yoga posited by Patanjali begins with a purification of the mind (yamas) and spirit (niyamas), then comes to the body via asana (body postures) and pranayama (breath). Hatha yoga contains substantial tantric influence, and marks the first point at which chakras and kundalini were introduced into the yogic canon. Compared to the seated asanas of Patanjali's Raja yoga which were seen largely as a means of preparing for meditation, it also marks the development of asanas as full body 'postures' in the modern sense.
Hatha Yoga in its many modern variations is the style that most people actually associate with the word "Yoga" today. Because its emphasis is on the body through asana and pranayama practice, many western students are satisfied with the physical health and vitality it develops and are not interested in the other six limbs of the complete Hatha yoga teaching, or with the even older Raja Yoga tradition it is based on.
Yoga in other traditions
The goals of yoga are expressed differently in different traditions. In Hinduism, with its variegated viewpoints and sects, Self-Realization and God-Realization are used interchangeably, with the underlying belief that the true nature of self (truth, consciousness, and bliss), revealed through the practice of yoga, has the same nature as the universal self, which may or may not be identified with a 'creator God' depending on the philosophical standpoint of the practitioner. In Western nations, where there is a strong emphasis on individualism, yoga practice may be an extension of the search for meaning in self, and integration of the different aspects of being.
Yoga and Buddhism
Yoga is intimately connected to the religious beliefs and practices of the Dharmic religions. The influence of Yoga is also visible in Buddhism, which is distinguished by its austerities, spiritual exercises, and trance states.
Yogacara Buddhism
Yogacara (Sanskrit: "Practice of Yoga [Union]"), also spelled yogāchāra, is a school of philosophy and psychology that developed in India during the 4th to 5th centuries.
Yogacara received the name as it provided a yoga, a framework for engaging in the practices that lead to the path of the bodhisattva. The Yogacara sect teaches Yoga in order to reach enlightenment.
Zen (Ch`an) Buddhism
Zen (the name of which derives from the Sanskrit "dhyaan" via the Chinese "ch'an") is a form of Mahayana Buddhism. The Mahayana school of Buddhism is noted for its proximity with Yoga. In the west, Zen is often set alongside Yoga, the two schools of meditation display obvious family resemblances. This phenomenon merits special attention since the Zen Buddhist school of meditation has some of its roots in yogic practices. Certain essential elements of Yoga are important both for Buddhism in general and for Zen in particular.
Tibetan Buddhism
Yoga is central to Tibetan Buddhism. In the Nyingma tradition, practitioners progress to increasingly profound levels of yoga, starting with Mahā yoga, continuing to Anu yoga and ultimately undertaking the highest practice, Ati yoga. In the Sarma traditions, the Anuttara yoga class is equivalent. Other tantra yoga practices include a system of 108 bodily postures practiced with breath and heart rhythm. Timing in movement exercises is known as Trul khor or union of moon and sun (channel) prajna energies. The body postures of Tibetan ancient yogis are depicted on the walls of the Dalai Lama's summer temple of Lukhang.
Yoga and Tantra
Tantrism, is a practice that is supposed to alter the relation of the individual practitioner of Tantrism to the ordinary social, religious, and logical reality in which he or she lives. Through Tantric practice an individual perceives reality as maya, illusion, and the individual achieves liberation from it.
This particular path to salvation among the several offered by Hinduism, links Tantrism to those Dharmic practices such as yoga, meditation, and social renunciation, which are based on temporary or permanent withdrawal from social relationships and modes.
During tantric practices and studies, the student is instructed further in meditation technique, particularly chakra meditation. This is often in a limited form in comparison with the way this kind of meditation is known and used by Tantric practitioners and yogis elsewhere, but is more elaborate than the initiate's previous meditation. It is considered to be a kind of Kundalini Yoga for the purpose of moving the Goddess into the chakra located in the "heart," for meditation and worship.
Goal of Yoga
For the dualistic bhakti schools of Vaishnavism, bhakti itself is the ultimate goal of the yoga process, wherein perfection culminates in an eternal relationship with Vishnu or one of his associated avatars such as Krishna or Rama.
Etymology
The Sanskrit term yoga has a wide range of different meanings. It is derived from the Sanskrit root yuj, "to control", "to yoke", or "to unite". Common meanings include "joining" or "uniting", and related ideas such as "union" and "conjunction". Another conceptual definition is that of "mode, manner, means" or "expedient, means in general".
"Pashupati seal"
A seal discovered during excavation of the Mohenjo-daro archaeological site in the Indus Valley has drawn attention as a possible representation of a "yogi" or "proto-Shiva" figure. This "Pashupati" (Lord of Animals, Sanskrit paśupati) seal shows a seated figure, possibly ithyphallic, surrounded by animals. Some observers describe the figure as sitting in a traditional cross-legged yoga pose with its hands resting on its knees. The discoverer of the seal, Sir John Marshall, and others have claimed that this figure is a prototype of Shiva, and have described the figure as having three faces, seated in a "yoga posture" with the knees out and feet joined.
This claim has not fared well with some modern academics. Gavin Flood characterizes these views as "speculative", saying that while it is not clear from the seal that the figure has three faces, is seated in a yoga posture, or even that the shape is intended