To remind followers that God is the ultimate protector.
This song is sung in the mood of vipralambha (separation) and laulyam (greed for devotion). The singer feels: “Without Kṛṣṇa, everything is painful. Only His name and saintly association can relieve this burning heart.” harikrsna vina duhkha kona hare
In contemporary Gauḍīya Vaiṣṇava practice (ISKCON, etc.), this line is still sung in Bengali kīrtanas. It addresses: To remind followers that God is the ultimate protector