I translated a verse from the Gorakh Sabadī, which the Nāthas call the Sūkṣma Veda (the refined essence of the Veda). I am always amased at how many layers of meaning can be found in these types of texts, when you know enough and dig deep into the subject. In general, in the language of the siddhas, the image of the city (pur), chariot (ratha) and house (gṛha) can be used to designate the body. In the latter case, gṛha can also mean a temple in which a deity is installed in the form of our soul (i.e. ourselves). And the very establishment of “āsana” is the unity of Śiva and Śakti, where the soul (ātmā) is Śiva and the body is Śakti. Śiva’s descent into his “āsana” is a sacred fusion of spirit and body, at least as the āsana is interpreted in the tantras. In principle, “āsana” in this context can be considered as yoga itself. The term “sahaja” is also used here, which can also have different levels of meaning. For example, as a “together born” state there is something that is not named, since it is transcendental, it is together with the manifested (born) body. And let me remind you that Sabadī is a poetic text, they are sung, and in this sense the text of Sabadī itself can serve as a means of meditation. Much like the texts of the Vedas, which are the object of prayer and meditation.

गिरही सो जो गिरहै काया, अभि अंतरि की त्यागै माया।
सहज सील का धरै सरीर, सो गिरही गंगा का नीर।।४५ ।।

girahī so jo girahai kāyā, abhi aṃtari kī tyāgai māyā।
sahaja sīla kā dharai sarīra, so girahī gaṃgā kā nīra।।45 ।।

गिरही – grihastha; सो (Sanskrit सः) – he; जो – who; गिरहै (गिरह) – binds, holds; काया – body;
अभि – now; अंतरि – inside, soul. त्यागै – sacrificed, left; माया – illusion.
सहज – innate nature; सील (शील) का – good character; धरै – retention; सरीर – body; सो – he; गिरही – living in the house (grihastha); गंगा का – like the Ganges; नीर – water.

Gṛhastha is the one who holds the body; at the same time sacrificing the conditioned mind (māyā) within. Goodness of character naturally sustains the body; one who lives in the house (body) is like the sacred waters of the Ganges. (45)