Shloka 21
Vānaprastha-vṛtti and the Transition toward the Fourth Āśrama (वानप्रस्थवृत्तिः चतुर्थाश्रमोपक्रमश्च)
अथ श्चैतां गतिं गत्वा वायव्यं सूक्ष्ममप्युत । अशुक्लं चेतस: सौक्ष्म्यमप्युक्तं ब्राह्मणस्य वै
atha ścaitāṁ gatiṁ gatvā vāyavyaṁ sūkṣmam apy uta | aśuklaṁ cetasaḥ saukṣmyam apy uktaṁ brāhmaṇasya vai ||
毗耶娑说：“继而循此道而行，乃至那极其微细的风之原理亦被抵达并超越。经教所说：对于以证悟梵（brahman）为志的婆罗门——即禅观求道者——其心将变得极其微细，并呈‘非白’之相：不再为寻常显著的性质所标记；此乃粗重自我认同在内里消融之征，瑜伽行者由此趋向对诸大之自在，并融入最微妙的广大之境。”
व्यास उवाच
Educational Q&A
The verse teaches a yogic progression in which the practitioner’s consciousness becomes extremely subtle as one transcends the airy principle (vāyu-tattva). This subtlety of mind is presented as a sign of approaching brahman-realization, where gross self-awareness and ordinary qualities no longer dominate.
Vyāsa describes an inner, contemplative process: after following a certain spiritual ‘course’ (gati), the seeker reaches even the subtle domain associated with vāyu. In that state, the mind of the brahman-seeking practitioner is said to become ‘aśukla’ and exceedingly subtle, indicating dissolution of grosser levels of experience.