In plain words
So Śaṅkara grieved. Govinda saw this scene. Gauḍapāda too, Govinda's guru, was much grieved. That such sacred feelings should enter Śaṅkara at so tender an age was a great wonder. ‘The one who has shown that the injustice, wrongdoing, misconduct and Asatya in the world today come from forgetting the truth at the root of the Vedas, the Śāstras, the Itihāsas and the Purāṇas is Śaṅkara,’ they decided between themselves. They called Śaṅkara: ‘Dear boy! You need not stay here any longer. Set out for Kāśī tomorrow itself. You must teach this doctrine of Advaita to the paṇḍitas in Kāśī and spread it through the world. This is a right that befits you alone; no one else has it,’ they said.
At the last, the thought of God alone protects man!
In the same way, the students of today must recognise the truth that it is the students who are fit and able to wipe out today's injustice, wrongdoing and misconduct. Taking his guru's command, Śaṅkara set out for Kāśī. In those days there were no trains or buses. It was on foot. At the age of sixteen he set out, taking his disciples with him. On the way a paṇḍita sat under a tree reciting Pāṇini's grammar, ‘ḍukṛñ karaṇe, ḍukṛñ karaṇe’. There he began the Bhaja Govindaṃ.
Worship Govinda, worship Govinda, worship Govinda, O foolish mind! When the appointed time draws near, ‘ḍukṛñ karaṇe’ will not, will not save you.
‘O fool! What will you gain by grammar? At the last, will this grammar save you? No. Remember God. At the end, neither friends nor relatives nor wealth, gold, goods or vehicles of any kind go with you. What stays with you, beside you, in your home, and protects you is the thought of God alone! Remember Govinda,’ he taught. There he set the man's mind at rest, taught him that he needed the thought of God, and went on his way.