Śrīmad-Bhāgavatam · Text 11.21.42
Who is speaking and story frame
किं विधत्ते किमाचष्टे किमनूद्य विकल्पयेत् ।
इत्यस्या हृदयं लोके नान्यो मद् वेद कश्चन ॥ ४२ ॥
kiṁ vidhatte kim ācaṣṭe
kim anūdya vikalpayet
ity asyā hṛdayaṁ loke
nānyo mad veda kaścana
In the entire world no one but Me actually understands the confidential purpose of Vedic knowledge. Thus people do not know what the Vedas are actually prescribing in the ritualistic injunctions of karma-kāṇḍa, or what object is actually being indicated in the formulas of worship found in the upāsanā-kāṇḍa, or that which is elaborately discussed through various hypotheses in the jñāna-kāṇḍa section of the Vedas.
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.