yogis. Onesicritus says that the yogis were aloof and adopted "different postures – standing or sitting or lying naked – and motionless". Onesicritus also mentions attempts by his colleague, Calanus, to meet them. Initially denied an audience, he was later invited because he was sent by a "king curious of wisdom and philosophy". Onesicritus and Calanus learn that the yogis consider life's best doctrines to "rid the spirit of not only pain, but also pleasure", that "man trains the body for toil in order that his opinions may be strengthened", that "there is no shame in life on frugal fare", and that "the best place to inhabit is one with scantiest equipment or outfit". According to Charles Rockwell Lanman, these principles are significant in the history of yoga's spiritual side and may reflect the roots of "undisturbed calmness" and "mindfulness through balance" in the later works of Patanjali and Buddhaghosa. Mahabharata and Bhagavad GitaNirodhayoga (yoga of cessation), an early form of yoga, is described in the Mokshadharma section of the 12th chapter (Shanti Parva) of the third-century BCE Mahabharata. Nirodhayoga emphasizes progressive withdrawal from empirical consciousness, including thoughts and sensations, until purusha (self) is realized. Terms such as vichara (subtle reflection) and viveka (discrimination) similar to Patanjali's terminology are used, but not described. Although the Mahabharata contains no uniform yogic goal, the separation of self from matter and perception of Brahman everywhere are described as goals of yoga. Samkhya and yoga are conflated, and some verses describe them as identical. Mokshadharma also describes an early practice of elemental meditation. The Mahabharata defines the purpose of yoga as uniting the individual ātman with the universal Brahman pervading all things. The Bhagavad Gita (Song of the Lord), part of the Mahabharata, contains extensive teachings about yoga. According to Mallinson and Singleton, the Gita "seeks to appropriate yoga from the renunciate milieu in which it originated, teaching that it is compatible with worldly activity carried out according to one's caste and life stage; it is only the fruits of one's actions that are to be renounced." In addition to a chapter (chapter six) dedicated to traditional yoga practice (including meditation), it introduces three significant types of yoga: Karma yoga: yoga of action Bhakti yoga: yoga of devotion Jnana yoga: yoga of knowledgeJack Hawley (2011), The Bhagavad Gita, , pages 50, 130; Arvind Sharma (2000), Classical Hindu Thought: An Introduction, Oxford University Press, ,