योगबीज (गुरु गोरखनाथ परम्परा - महायोग, प्राण-अपान एकत्व एवं कैवल्य-सिद्धि सटीक)

अधुना संप्रवक्ष्यामि योगाभ्यासस्य लक्षणाम् ॥ ९० ॥ evam tu dvandajālasya saṁyogo yoga ucyate | adhunā saṁpravakṣyāmi yogābhyāsasya lakṣaṇām || 90 || 90. Thus, the union of these dualities is called Yoga. Now I will describe the characteristics of the practise of Yoga. मरुज्जयो यस्य सिद्धः सेव्येत् तं गुरुं सदा । गुरुवक्त्रप्रसादेन कुर्यात् प्राणजयं बुधः ॥ ९१ ॥ marujjayo yasya siddhaḥ sevayet taṁ guruṁ sadā | guruvaktraprasādena kuryāt prāṇajayaṁ budhaḥ || 91 || 91. One should always serve such a guru, whose mastery over the vital breath is perfected, by the grace of the guru's speech, the wise should conquer the life force (energy). वितस्तिप्रमितं दैर्घ्यं विस्तारे चतुरङ्गुलम् । मृदुलं धवलं प्रोक्तं वेष्टनाम्बरलक्षणम् ॥ ९२ ॥ vitastipramitaṁ dairghyaṁ vistāre caturaṅgulam | mṛdulaṁ dhavalaṁ proktaṁ veṣṭanāmbaralakṣaṇam || 92 || 92. The length (of the breath) is measured by the extended span of the hand¹ (vitasti), and the width is four fingers (and one thumb). It is said to be mild, gentle, and pure; this is the characteristic quality (of the extension of the breath, from the) lips (out into) the (surrounding) atmosphere.

1. From the tip of the thumb to the tip of the little finger when the fingers are stretched out. The vitasti is equal to 12 aṅgulas. (the long span of vitasti, measured by the extended thumb and little finger, is considered equal to twelve fingers). निरुध्य मारुतं गाढं शक्तिचालनयुक्तितः | अष्टधा कुण्डलीभूतां ऋजुं कर्तुं तु कुण्डलीम् || ९३ || nirudhya mārutaṁ gāḍhaṁ śakticālanayuktitaḥ | aṣṭadhā kuṇḍalībhūtāṁ ṛjuṁ kartuṁ tu kuṇḍalīm || 93 ||
2. (By) firmly restraining the breath, with an effort that shakes the energy¹; the Kundalini, which is coiled eightfold, is to be straightened and made erect.
3. During breath retention, the air drawn in generates energy (the upward moving elemental power of the breath) which heats and lifts the kundalini up the central channel of the Suṣumṇā. Upon exhalation (with the downward moving elemental power of the breath), kundalini, falls back down the central channel of the Suṣumṇā. This oscillating elemental energy of the breath (the upward moving and downward moving elemental power of the breath) “shakes” the kundalini up and down the central channel of the Suṣumṇā.