Analysis of information sources in references of the Wikipedia article "Haṭha Ratnāvalī" in English language version.
this number has symbolic significance. S. Dasgupta, in Obscure Religious Cults (1946), cites numerous instances of variations on eighty-four in Indian literature that stress its 'purely mystical nature'; ... Gudrun Buhnemann, in her comprehensive Eighty-Four Asanas in Yoga, notes that the number 'signifies completeness, and in some cases, sacredness. ... John Campbell Oman, in The Mystics, Ascetics, and Saints of India (1905) ... seven ... classical planets in Indian astrology ... and twelve, the number of signs of the zodiac. ... Matthew Kapstein gives .. a numerological point of view ... 3+4=7 ... 3x4=12 ...