ध्यानयज्ञः, संसार-विष-निरूपणम्, पाशुपतयोगः, परा-अपरा विद्या, चतुर्वस्था-विचारः (अध्यायः ८६)
सुषुप्तं हृदयस्थं तु तुरीयं मूर्धनि स्थितम् जाग्रे ब्रह्मा च विष्णुश् च स्वप्ने चैव यथाक्रमात्
suṣuptaṃ hṛdayasthaṃ tu turīyaṃ mūrdhani sthitam jāgre brahmā ca viṣṇuś ca svapne caiva yathākramāt
Tidur lena (suṣupti) bersemayam di hati, sedangkan Yang Keempat (turīya) tegak di ubun-ubun. Dalam keadaan jaga hadir Brahmā dan Viṣṇu; dan dalam mimpi juga—menurut tertibnya—sesuai dengan fungsi masing-masing.
Suta Goswami (narrating the Linga Purana teaching to the sages of Naimisharanya)
It internalizes Linga-upāsanā: the devotee tracks consciousness from heart-centered suṣupti to crown-established turīya, treating the body as the sacred axis where the Supreme (Pati) is realized beyond changing states.
By pointing to turīya beyond waking, dream, and deep sleep, it indicates Shiva-tattva as the transcendental witness and Lord (Pati) who is not confined to Brahmā–Viṣṇu functional appearances within the lower states.
A yogic contemplation used in Pāśupata-oriented practice: observing jāgrat–svapna–suṣupti and stabilizing awareness in turīya (often correlated with ascent to the crown), supporting mantra-japa and inner Linga-dhyāna.