Śrīmad-Bhāgavatam · Text 10.84.19
Who is speaking and story frame
ब्रह्म ते हृदयं शुक्लं तप:स्वाध्यायसंयमै: ।
यत्रोपलब्धं सद् व्यक्तमव्यक्तं च तत: परम् ॥ १९ ॥
brahma te hṛdayaṁ śuklaṁ
tapaḥ-svādhyāya-saṁyamaiḥ
yatropalabdhaṁ sad vyaktam
avyaktaṁ ca tataḥ param
The Vedas are Your spotless heart, and through them one can perceive — by means of austerity, study and self-control — the manifest, the unmanifest and the pure existence transcendental to both.
Read the purport on Vedabase.ioFrom Canto 10, chapter 14 onward, the translation and purports were completed by Śrīla Prabhupāda's disciples after his departure, and published by the Bhaktivedanta Book Trust.