2.31
’gaura-gopala mantra’ tomara cari aksara
avisvasa chada, yei kariyacha antara"
SYNONYMS
gaura-gopala mantra—the Gaura-gopala mantra; tomara—your; cari aksara—composed of four syllables; avisvasa chada—give up your doubts; yei—which; kariyacha antara—you have kept within your mind “You are chanting the Gaura-gopala mantra composed of four syllables.
Now please give up the doubts that have resided within you.”
PURPORT
Srila Bhaktivinoda Thakura explains the Gaura-gopala mantra in his Amrta-pravaha-bhasya.
Worshipers of Sri Gaurasundara accept the four syllables gau-ra-an-ga as the Gaura mantra, but pure worshipers of Radha and Krsna accept the four syllables ra-dha krs-na as the Gaura-gopala mantra.
However, Vaisnavas consider Sri Caitanya Mahaprabhu nondifferent from Radha-Krsna (sri-krsna-caitanya radha-krsna nahe anya).
Therefore one who chants the mantra Gauranga and one who chants the names of Radha and Krsna are on the same level.