Skandapurana 7.19.p21

7.19.p21

pravakṣyāmi tava vyāsa bhaktastvamasi śaṅkare .
yoginonye na jānanti yad guhyaṃ paramādbhutam36 .. 31 . .
muktvā pāśupatān siddhān yanna bhūteṣu vidyate .
mano buddhirahaṅkāra indriyāṇi guṇatrayam .. 32 . .
na spṛśanti tadātmānaṃ37 vikārāstasya te bahiḥ .
sarvatra dṛśyate sotha na ca sarvaiḥ pradṛśyate .
sa evaṃ dṛsyate dhyānānnānyopāyāt kathañcana38 ..3 3 . .
sarvabhāvaguṇātītaṃ sucintyaṃ39 parameśvaram .
jñānena ye prapaśyanti yoginaste pare smṛtāḥ . .34. .
chāyaiṣā dṛśyate yā tu cakṣurviṣayamāśritā .
sa jīvaḥ kīrtito vyāsa sthitihetuḥ śarīriṇām . .3 5. .
tatrāste sa paro hyātmā sūkṣmo madhyagatovyayaḥ
mahānāgaḥ smṛto nāmnā vāyurākāśagocaraḥ ..3 6..

I shall declare to you, Vyāsa, since you are devoted to Śaṅkara, / which other yogins do not know, which is secret and most wonderful,
which, apart from the perfected Pāśupatas, does not exist among beings. / The mind, intellect, ego, sense organs, and the triad of guṇas
do not touch that self; his transformations are external. / Then he is seen everywhere, yet he is not seen by everyone;
he is seen thus only through meditation, by no other means whatsoever. / Beyond all states of existence and guṇas, well-meditated upon, the Supreme Lord—
those yogins who perceive him through knowledge are remembered as supreme. / But this shadow which is seen, dwelling in the domain of the eye,
that is declared as the living soul, O Vyāsa, the cause of embodied beings' stability. / In that resides that supreme Self, subtle, situated in the middle, imperishable. / The wind that moves in the space [of the heart] is known by the name Mahānāga.