स य एषोऽणिमैतदात्म्यमिदद्ं सर्वं तत्सत्यं स आत्मा तत्त्वमसि श्वेतकेतो इति भूय एव मा भगवान्विज्ञापयत्विति तथा सोम्येति होवाच ॥ ६.१२.३ ॥
In plain words
That which is this finest essence — this whole world has that as its self. That is the real. That is the Self. That thou art, Śvetaketu." "Let my lord teach me further." "So be it, my dear," he said.
The commentators
Chāndogyopaniṣadbhāṣyam· bhāṣya
स य इत्याद्युक्तार्थम् । यदि तत्सज्जगतो मूलम्, कस्मान्नोपलभ्यत इत्येतद्दृष्टान्तेन मा भगवान्भूय एव विज्ञापयत्विति । तथा सोम्येति ह उवाच पिता ॥
In plain words
That much has already been explained. But if that existent reality is truly the root of the universe, why can we not perceive it? Pray explain this to me once more through an example, revered sir. So spoke the father, 'So be it, gentle one.'
Close to the Sanskrit
That which has been spoken of thus has its meaning explained. If that existent reality is the root of the world, why is it not perceived, let the venerable one explain this to me again by means of an example, thus. Thus, gentle one, spoke the father.