Shloka 4
Adhyāya 48: Brahmopadeśa on Prāṇāyāma, Sāttvika Vṛtti, and the Sattva–Kṣetrajña Question
प्राणायामैरथ प्राणान् संयम्य स पुनः पुनः । दशद्वादशभिर्वापि चतुर्विशात् परं तत:,दस अथवा बारह प्राणायामोंके द्वारा पुनः-पुनः प्राणोंका संयम करनेवाला पुरुष भी चौबीस तत्त्वोंसे परे पचीसवें तत्त्व परमात्माको प्राप्त होता है
prāṇāyāmair atha prāṇān saṁyamya sa punaḥ punaḥ | daśadvādaśabhir vāpi caturviṁśāt paraṁ tataḥ ||
Vāyu-deva said: By repeatedly restraining the vital breaths through the disciplines of prāṇāyāma—whether by ten or by twelve such breath-controls—a practitioner goes beyond the twenty-four principles and attains the twenty-fifth principle, the Supreme Self. The teaching places yogic self-mastery in an ethical frame: disciplined control of life-force becomes a means to transcend material constituents and realize the highest reality.
वायुदेव उवाच