His heir, Humayun, preferred opium and astrology to complex State affairs; he was driven out of India into Persia by General Sher Shah, who proved to be a much more able ruler.
India benefited from the steady hand of General Sher Shah who was more adept at ruling than his predecessor.
Humayun shirked drugs and frivolous pursuits, opting to immerse himself in the practice of statesmanship.