भज गोविन्दं भज गोविन्दं गोविन्दं भज मूढमते। सम्प्राप्ते सन्निहिते काले न हि न हि रक्षति डुकृञ्करणे॥

Meaning

Worship Govinda, worship Govinda, worship Govinda, O deluded mind — when the appointed hour of death draws near, the rules of grammar (ḍukṛñ-karaṇe) will certainly not save you. Shankaracharya composed this on the ghats of Kashi after rebuking an aged pandit drilling Panini's sutras while life ebbed away. The verse is the bija of the entire Moha-Mudgara: dry scholarship divorced from bhakti and Atma-vichara cannot ferry the jiva across samsara. Only constant remembrance of Govinda — the Lord who is sat-chit-ananda — dissolves moha and grants liberation when Yama arrives.