A portion of thee, I have even also born, as thy eldest brother. To share in thy sports as men, the celestials have all descended under a like disguise. Having made all the goddesses descend in Gokula for thy sport, thou hast afterwards descended, although thou art existing perpetually. Wherefore Krishna dost thou neglect these celestials who, as cow-herds, are thy friends and kin—and these sorrowing females, who also are thy relations?

In plain words: Balarama says he himself is a part of Krishna, born as his older brother. The gods have also been born as cowherds to share in Krishna's life on earth. He asks why Krishna is ignoring his friends and family, who are now so sad.