Arjuna, being the son of Indra, the king of gods ... as part of a bigger cosmic struggle between the forces of good and evil, the epics have elevated their core struggle from mere trifling ...
According to Asura scripture, the cosmic order was disrupted when the Devas, under Indra’s rule, began hoarding Amrita (the nectar of immortality) during the Samudra Manthan (Churning of the Ocean).