Prakṛti in the context of "Water (element)"

Samkhya or Sankhya (/ˈsɑːŋkjə/; Sanskrit: सांख्य, romanized: Sāṅkhya) is a dualistic orthodox school of Hindu philosophy. It views reality as composed of two independent principles, Puruṣa ('consciousness' or spirit) and Prakṛti (nature or matter, including the human mind and emotions).

Puruṣa is the witness-consciousness. It is absolute, independent, free, beyond perception, above any experience by mind or senses, and impossible to describe in words.

Ātman (/ˈɑːtmən/; Sanskrit: आत्मन्) in Hinduism is the true, innermost essence or self of a living being, conceived as eternal and unchanging. Atman is conceptually closely related to the individual self, Jīvātman, which persists across multiple bodies and lifetimes, but different from the self-image or ego (Ahamkara), the emotional aspect of the mind (Citta), and the bodily or natural aspects (prakṛti). The term is often translated as soul, but is better translated as "Self" or essence. To attain moksha (liberation), a human being must acquire self-knowledge (Atma Gyaan or Brahmajnana).

The six orthodox schools of Indian philosophy have different views on what this self is. In Samkhya and Yoga, which call the essence purusha, and in Advaita Vedanta, the essence is pure consciousness or witness-consciousness (sakshi), beyond identification with phenomena. In Samkhya and Yoga there are innumerable selves, while in Advaita Vedanta there is only one Self. Prominent views in Vedanta on the relation between (Jīv)Atman and the supreme Self (Paramātmā) or Ultimate Reality (Vishnu, Shiva, Brahman) are that atman and Brahman are simultaneously different and non-different (Bhedabheda), non-different (Advaita, 'not-two'), different with dependence (Dvaita, 'dualist'), or non-different but with dependence (Vishishtadvaita, qualified non-dualism).

Ātman (/ˈɑːtmən/; Sanskrit: आत्मन्) in Hinduism is the true, innermost essence or self of a living being, conceived as eternal and unchanging. Atman is conceptually closely related to the individual self, Jīvātman, which persists across multiple bodies and lifetimes, but different from the self-idea or ego (Ahamkara), the emotional aspect of the mind (Citta), and the bodily or natural aspects (prakṛti). The term is often translated as soul, but is better translated as "Self" or essence. To attain moksha (liberation), a human being must acquire self-knowledge (Atmajnana or Brahmajnana).

The six orthodox schools of Indian philosophy have different views on what this self is. In Samkhya and Yoga, which call the essence purusha, and in Advaita Vedanta, the essence is pure consciousness or witness-consciousness (sakshi), beyond identification with phenomena. In Samkhya and Yoga there are innumerable selves, while in Advaita Vedanta there is only one Self. Prominent views in Vedanta on the relation between (Jīv)Atman and the supreme Self (Paramātmā) or Ultimate Reality (Brahman) are that atman and Brahman are simultaneously different and non-different (Bhedabheda), non-different (Advaita, 'not-two'), different with dependence (Dvaita, 'dualist'), or non-different but with dependence (Vishishtadvaita, qualified non-dualism).

Kaivalya (Sanskrit: कैवल्य) is the ultimate goal of aṣṭāṅga yoga and means "solitude", "detachment" or "isolation", a vrddhi-derivation from kevala "alone, isolated". It is the isolation of purusha from prakṛti, and liberation from rebirth, i.e., moksha. Kaivalya-mukti is described in some Upanishads, such as the Muktika and Kaivalya Upanishads, as the most superior form of moksha, which can grant liberation both within this life (as in jīvanmukti), and after death (as in videhamukti).

Radha (Sanskrit: राधा, IAST: Rādhā), also called Radhika, is a Hindu goddess and the chief consort of the god Krishna. She is the goddess of love, tenderness, compassion, and devotion. In scriptures, Radha is mentioned as the avatar of Lakshmi and also as the Mūlaprakriti, the Supreme goddess, who is the feminine counterpart and internal potency (hladini shakti) of Krishna. Radha accompanies Krishna in all his incarnations. Radha's birthday is celebrated every year on the occasion of Radhashtami.

In relation with Krishna, Radha has dual representation—the lover consort as well as his married consort. Traditions like Nimbarka Sampradaya worship Radha as the eternal consort and wedded wife of Krishna. In contrast, traditions like Gaudiya Vaishnavism revere her as Krishna's lover and the divine consort.

Mahat-tattva (Sanskrit: महत्तत्त्व, romanized: Mahattattva) or mahat is a concept in the Samkhya philosophy of Hinduism. It is the first evolute of Prakriti, the causeless cause of the world, that is generated after Prakriti begins to evolve when its equilibrium is disturbed, which causes expansion of material energy and matter. In the process of evolution, after mahat emanates, egoity (ahamkara), mind (manas), the five sense capacities, the five action capacities, the five subtle elements, and the five gross elements evolve. These are the 22 other elements that constitute the basic metaphysics of Samkhya.

Ashtanga yoga (Sanskrit: अष्टाङ्गयोग, romanized: aṣṭāṅgayoga, "eight limbs of yoga") is Pātañjali's classification of classical yoga, as set out in his Yoga Sūtras. He defined the eight limbs as yama (abstinences), niyama (observances), āsana (postures), prāṇāyāma (breath control), pratyāhāra (withdrawal of the senses), dhāraṇā (concentration), dhyāna (meditation), and samādhi (absorption).

The eight limbs form a sequence from the outer to the inner. The posture, asana, must be steady and comfortable for a long time, in order for the yogi to practice the limbs from prāṇāyāma until samādhi. The main aim is kaivalya, discernment of Puruṣa, the witness-conscious, as separate from Prakṛti, the cognitive apparatus, and disentanglement of Puruṣa from its muddled defilements.

Pralaya (Sanskrit: प्रलय, romanized: Pralaya, lit. 'Destruction') is a concept in Hindu eschatology. Generally referring to four different phenomena, it is most commonly used to indicate the event of the dissolution of the entire universe that follows a kalpa (a period of 4.32 billion years) called the Brahmapralaya.

Pralaya also refers to Nityapralaya, the continuous destruction of all animate and inanimate beings that occurs on a daily basis, Prakritapralaya, the great flood produced by Prakriti (Nature) that ends all of creation after the completion of 1,000 Chaturyuga (four-age) cycles, and Atyantikapralaya, the dissolution of one's Atman (Self) due to its union with Brahman (Ultimate Reality). A concept that has been referenced in literature since the Upanishads, the concept of pralaya has been widely discussed in Hindu cosmology as well as philosophy.