The Buddha
Ascetic life and awakening

Majjhima Nikaya 4 mentions that Gautama lived in "remote jungle thickets" during his years of spiritual striving and had to overcome the fear that he felt while living in the forests. The Nikaya-texts narrate that the ascetic Gautama practised under two teachers of yogic meditation. According to the Ariyapariyesanā-sutta (MN 26) and its Chinese parallel at MĀ 204, after having mastered the teaching of Ārāḍa Kālāma (Pali: Alara Kalama), who taught a meditation attainment called "the sphere of nothingness", he was asked by Ārāḍa to become an equal leader of their spiritual community.

Gautama felt unsatisfied by the practice because it "does not lead to revulsion, to dispassion, to cessation, to calm, to knowledge, to awakening, to Nibbana", and moved on to become a student of Udraka Rāmaputra (Pali: Udaka Ramaputta). With him, he achieved high levels of meditative consciousness (called "The Sphere of Neither Perception nor Non-Perception") and was again asked to join his teacher. But, once more, he was not satisfied for the same reasons as before, and moved on.

According to some sutras, after leaving his meditation teachers, Gotama then practiced ascetic techniques. The ascetic techniques described in the early texts include very minimal food intake, different forms of breath control, and forceful mind control. The texts report that he became so emaciated that his bones became visible through his skin. The Mahāsaccaka-sutta and most of its parallels agree that after taking asceticism to its extremes, Gautama realized that this had not helped him attain nirvana, and that he needed to regain strength to pursue his goal. One popular story tells of how he accepted milk and rice pudding from a village girl named Sujata.

According to the 身毛喜豎經, his break with asceticism led his five companions to abandon him, since they believed that he had abandoned his search and become undisciplined. At this point, Gautama remembered a previous experience of dhyana ("meditation") he had as a child sitting under a tree while his father worked. This memory leads him to understand that dhyana is the path to liberation, and the texts then depict the Buddha achieving all four dhyanas, followed by the "three higher knowledges" (tevijja), culminating in complete insight into the Four Noble Truths, thereby attaining liberation from samsara, the endless cycle of rebirth.

According to the Dhammacakkappavattana Sutta (SN 56), the Tathagata, the term Gautama uses most often to refer to himself, realized "the Middle Way "—a path of moderation away from the extremes of self-indulgence and self-mortification, or the Noble Eightfold Path. In later centuries, Gautama became known as the Buddha or "Awakened One". The title indicates that unlike most people who are "asleep", a Buddha is understood as having "woken up" to the true nature of reality and sees the world 'as it is' (yatha-bhutam). A Buddha has achieved liberation (vimutti), also called Nirvana, which is seen as the extinguishing of the "fires" of desire, hatred, and ignorance, that keep the cycle of suffering and rebirth going.

Following his decision to leave his meditation teachers, MĀ 204 and other parallel early texts report that Gautama sat down with the determination not to get up until full awakening (sammā-sambodhi) had been reached; the Ariyapariyesanā-sutta does not mention "full awakening", but only that he attained nirvana. In Buddhist tradition, this event was said to have occurred under a pipal tree—known as "the Bodhi tree "—in Bodh Gaya, Bihar.

As reported by various texts from the Pali Canon, the Buddha sat for seven days under the bodhi tree "feeling the bliss of deliverance". The Pali texts also report that he continued to meditate and contemplated various aspects of the Dharma while living by the River Nairañjanā, such as Dependent Origination, the Five Spiritual Faculties and suffering (dukkha).

The legendary biographies like the Mahavastu, Nidanakatha and the Lalitavistara depict an attempt by Mara, the ruler of the desire realm, to prevent the Buddha's nirvana. He does so by sending his daughters to seduce the Buddha, by asserting his superiority and by assaulting him with armies of monsters. However the Buddha is unfazed and calls on the earth (or in some versions of the legend, the earth goddess) as witness to his superiority by touching the ground before entering meditation. Other miracles and magical events are also depicted.
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