An acharya is the initiating guru of Shaiva Siddhanta and related Shaiva lineages, transmitting mantra and ritual authority to a disciple.
Source An Introduction to HinduismGavin Flood
Tamil Nayanar poet-saints made bhakti to Shiva a central devotional practice, later canonized as the Tirumurai, Shaivism's own devotional scripture.
Source Songs of Experience: The Poetics of Tamil DevotionNorman Cutler
Why this is disputed. Whether Shiva is identical with an undifferentiated Brahman, as Kashmir Shaivism holds, or eternally distinct from souls, as Shaiva Siddhanta holds, is argued within Shaivism itself. The two schools built substantial independent theological literatures defending their own reading, and neither tradition has historically treated the other's position as a legitimate variant of its own.
Source The Doctrine of Vibration: An Analysis of the Doctrines and Practices of Kashmir ShaivismMark S. G. Dyczkowski
Shiva is the ishta-devata of Shaivism, worshipped as the supreme reality behind the other gods rather than as one deity chosen among equals.
Source An Introduction to HinduismGavin Flood
Source Hindu Tantric and Sakta Literature (Goudriaan and Gupta)Teun Goudriaan and Sanjukta Gupta
Source Encyclopedia of ReligionMircea Eliade (ed.); Lindsay Jones (ed., 2nd ed.)
Shaivas keep a strict fast and an all-night vigil, pouring water, milk and bilva leaves over the lingam through four watches of the night while chanting Om Namah Shivaya; it is solemn where most Hindu festivals are festive.
Source The Hindu Religious YearMuriel Marion Underhill
Source The Hymns of the Rigveda, translated with a popular commentaryRalph T. H. Griffith
Source Encyclopedia of ReligionMircea Eliade (ed.); Lindsay Jones (ed., 2nd ed.)
Source Encyclopedia of HinduismDenise Cush, Catherine Robinson and Michael York (eds.)
Source UNESCO World Heritage ListUnited Nations Educational, Scientific and Cultural Organization
Shaiva puja is offered most often to a lingam rather than a figure, and the offering is poured: water, milk, curd, honey and ghee bathe the stone, with bilva leaves and ash rather than the fuller table of a Vaishnava rite.
Source Encyclopedia of ReligionMircea Eliade (ed.); Lindsay Jones (ed., 2nd ed.)
Source Encyclopedia of ReligionMircea Eliade (ed.); Lindsay Jones (ed., 2nd ed.)
Source Saivism and the Tantric TraditionsAlexis Sanderson
Source Encyclopedia of ReligionMircea Eliade (ed.); Lindsay Jones (ed., 2nd ed.)
Source God Shiva, Lord of the Dance (Nataraja), accession 1947.2 (Denver Art Museum)Denver Art Museum, catalogue entry
Source Somanatha: The Many Voices of a HistoryRomila Thapar
Shaiva tantra runs from the nondual Kashmir schools, which read the world as the play of one consciousness, to the Nath and other yogic orders, and it supplies the Agamas that govern much ordinary Shaiva temple worship.
Source Encyclopedia of ReligionMircea Eliade (ed.); Lindsay Jones (ed., 2nd ed.)
The Tevaram, hymns of the Tamil Nayanar poet-saints to Shiva, is canonical devotional scripture within Shaivism, part of the Tirumurai.
Source Songs of Experience: The Poetics of Tamil DevotionNorman Cutler
Source Encyclopedia of ReligionMircea Eliade (ed.); Lindsay Jones (ed., 2nd ed.)
The Tiruvasagam, Manikkavacakar's Tamil hymns to Shiva, is canonical devotional scripture within Shaivism, part of the Tirumurai.
Source Songs of Experience: The Poetics of Tamil DevotionNorman Cutler
Source Encyclopedia of ReligionMircea Eliade (ed.); Lindsay Jones (ed., 2nd ed.)
Shaivism claims Shiva himself as the first yogi and lord of yoga, and its Nath and tantric orders developed hatha yoga and the subtle-body practices of the coiled energy, which is the ancestry of most posture-based yoga taught today.
Source Hatha Yoga PradipikaSvatmarama