krsnera vallabha radha krsna-prana-dhana
tanha vinu sukha-hetu nahe gopi-gana
krsnera—of Lord Krsna; vallabha—beloved; radha—Srimati Radharani; krsna-prana-dhana—the wealth of the life of Lord Krsna; tanha—Her; vinu—without; sukha-hetu—cause of happiness; nahe—are not; gopi-gana—the gopis.
Radha is the beloved consort of Krsna, and She is the wealth of His life. Without Her, the gopis cannot give Him pleasure.
Link to this page: https://prabhupadabooks.com/cc/adi/4/218