Yoga has precisely 42 different and precise definitions, in the Sanskrit dictionary, and further according to Hinduism, Buddhism, Jyotisha (Astronomy & Astrology) and various Sutras, but ultimately, Yoga the art and science always boils down to one thing. Samadhi a.k.a. Enlightenment or Re-synchronization with Nature.
In Shaivism, Yoga (योग) basically means “yoking & uniting”, and a Yogi will tell you that it’s necessary to do both – yoke and conjoin. Yoke and conjoin what is the question.
Spiritually, the term connotes meditation (dhyana), concentration of the mind (dharana), and the various techniques to accomplish that proficiently (Ashtangha).
Among Bhakti, Jñāna and Vairāgya, in every state of the relationship between myself and the God, viz. sālokya, sāmīpya, wherein that relationship is as servant to master or filial, sārūpya wherein the relationship becomes fraternal and steady and dhyana presides in the waking state, or even in sāyūjya, where there is only non-duality, wherein our relationship has become like that of lovers, amorous, Yoga is and remains the exercise of purposefully uniting the dual disposition of subject and object of worship.
Yoga (योग, “meditation”) or Yogapada, refers to a division of the āgamas — the four classes of devotion (Bhakti) or the states of spiritual life, and the four modes of sādhana, spiritual practice, that they entail. Thus, sālokya corresponds to ritual and moral conduct, sāmīpya to kriyā and iconography, sārūpya to yoga & meditation, and sāyūjya to jñāna, theology and gnosis.
The Yogatattva Upanishad, one of eleven Yoga Upanishads in Atharva Veda asserts the simultaneous importance of yoga and jñana. According to Puranic lore, it is jñana that reveals Brahman and it is yoga which is the concentration on Brahman. Taken together then, Yoga is the perfect union of Jivātmā and Paramātmā.
Perhaps more popular is the definition given by Patanjali in Book 2 of the Yoga Sutras – Samadhi Pada viz. yogash-chitta-vritti-nirodhah ||2|| योगश्चित्तवृत्तिनिरोधः ॥२॥ – “Yoga is (simply) the stilling, or otherwise controlling of the fluctuations of mind. While true, I have never been a fan of this particular definition for reasons that I lay out in great detail in a white paper found at a link on my profile if interested.
I like the Yogatattva definition. It does the art/science of Yoga justice. I also like definitions presented in Shakta Philosophy: Yoga is (1) the identity of the individual Self (jīva) and the (supreme) Self (parama-ātman); (2) the knowledge of the identity of Śiva and the Self; (3) the knowledge of Śiva and Śakti; and (4) the knowledge of the eternal being (purāṇa-puruṣa).
…is a Jnana Yogi in the lineage of aghor-nath, direct disciple of Vinayagananda Babaji, and founder of UmaMaYA (Uma Maheshwara Yoga & Ayurveda), the legacy of Uma Maheshwar Ashram. David has an M.A. in Semiotics and Ph.D.(c) in Eastern Philosophy and works in learning and development as a coach and mentor. He lives in Japan with his family and devotes his time to exploration of the human condition, in order to develop science-based tools, programs and products that help humans reach their fullest potential by delivering optimal body/mind health, abundance and joy.