The illustrious pair (Krishna and Arjuna) were the masters that directed the every operation of the universe; they directed all acts relating Dharma, Artha and Kama.
ईशौ हि तौ महात्मानौ सर्वकार्यप्रवर्तिनौ। धर्मकामार्थलोकानां कार्याणां च प्रवर्तकौ॥