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yugavatara ebe suna, sanatana
satya-treta-dvapara-kali-yugera ganana
SYNONYMS
yuga-avatara—incarnation of millenniums; ebe—now; suna—hear; sanatana—O Sanatana Gosvami; satya-treta-dvapara-kali-yugera—of the Satya-yuga, Treta-yuga, Dvapara-yuga and Kali-yuga; ganana—the chronological order "O Sanatana, now hear from Me about the yuga-avataras, the incarnations for the millenniums.
First of all, there are four yugas-Satya-yuga, Treta-yuga, Dvapara-yuga and Kali-yuga.