"To err is human. To err is inevitable for all, being not perfect. Still, no one wants to remain imperfect. There is an element within all that is animate that tends towards perfection. If it were not so, we would feel no want at all. Our tendency towards perfection is certainly very weak and limited; otherwise we could attain the goal at once. Our limited capacity and tendency for perfection makes room for the guide or guru. The imperfect is not so if not in need of help, and that also from beyond itself. The perfect is not perfect if He cannot assert Himself or help others, and that too, of His own accord. So the guidance to perfection or Absolute Truth is necessarily a function of the absolute Himself, and the divine agent through whom this function manifests is Sri Guru or the divine guide."

– Srila B. R. Sridhara Goswami