One verse

Srimad Bhagavatam 11.21.36

11.21.36

शब्दब्रह्म सुदुर्बोधं प्राणेन्द्रियमनोमयम् । अनन्तपारं गम्भीरं दुर्विगाह्यं समुद्रवत् ॥ ३६ ॥

śabda-brahma su-durbodhaṁ prāṇendriya-mano-mayam ananta-pāraṁ gambhīraṁ durvigāhyaṁ samudra-vat

śabda-brahma
the transcendental sound of the Vedas
su-durbodham
extremely difficult to comprehend
prāṇa
of the vital air
indriya
senses
manaḥ
and mind
mayam
manifesting on the different levels
ananta-pāram
without limit
gambhīram
deep
durvigāhyam
unfathomable
samudra-vat
like the ocean

The transcendental sound of the Vedas is very difficult to comprehend and manifests on different levels within the prāṇa, senses and mind. This Vedic sound is unlimited, very deep and unfathomable, just like the ocean.