samapatti: Savitarka, "deliberative": The citta(चित्त)is concentrated upon a gross object of meditation, and the yogi's deliberates and fuses with it, becoming unaware of everything else. Conceptualization (vikalpa) here is in the form of perception and the knowledge of the object of meditation. When the deliberation is ended this is called nirvitaka samadhi. Savichara, "reflective": the citta(चित्त)is concentrated upon an abstract object of meditation, which is not perceptible to the senses, but arrived at through inference. The object of meditation can be inferred from the senses, the process of cognition, the mind, the I-am-ness, or the buddhi (intellect). The stilling of reflection is called nirvichara samapatti. Asamprajnata Samadhi, also called Nirvikalpa Samadhi and Nirbija Samadhi: the state achieved when the meditation is without the help of a support or an object. Both object-centered and objectless-centered meditative practice, in Hindu texts, leads to progressively more bright, pellucid and poised state of "powerful, pure, Sattvic" state of blissful Self, ultimately leading to the knowledge of purusha or Atman-Brahman (soul), states Michael Washburn. This is the state, in Hindu tradition, where states Gregor Maehle, the yogi or yogini realizes "the Atman in you is the Atman in everyone", and leading to the realization of Self. Samyama The practice of Dharana, Dhyana and Samādhi together is designated as Samyama (Sanskrit: संयम, holding together) in the Yoga Sutras of Patanjali. Samyama, asserts the text, is a powerful meditative tool and can be applied to a certain object, or entire class of objects. A yogi who does Samyama on Pratyaya (notions, customs) of men, states sutra 3.19 of the text, knows the series of "psycho-mental states of other men". A yogi after successfully completing Samyama on "distinction of object and idea" realizes the "cries of all creatures", states sutra 3.17. A Samyama on friendliness, compassion and joy leads to these powers emerging within the yogi, states sutra 3.23. The meditation technique discussed in the Yoga Sutras of Patanjali is thus, states Mircea Eliade, a means to knowledge and siddhi (yogic power). Vācaspati Miśra, a scholar of the Vedanta school of Hinduism, in his bhasya on the Yogasutra's 3.30 wrote, "Whatever the yogin desires to know, he should perform samyama in respect to that object". Moksha (freedom, liberation) is one such practice, where the object of samyama is Sattva (pure existence), Atman (soul) and Purusha (Universal principle) or Bhagavan (God). Adi Shankara, another scholar of the Vedanta school