Verse 26

यदादिशसि तत्सर्वं तथैव न तदन्यथा ।अपास्तनिद्रेण मया वाक्यार्थो हृदि चिन्तितः

In plain words

Whatever you instruct is exactly so, and never otherwise. Casting sleep aside, I pondered the meaning of your words in my heart.