When the three … obstructions of pride, doubt, and false views are added to the three poisons, we have what are known as the six fundamental obstructions. Pride and self-centeredness prevent human beings from evaluating others correctly and lead to incorrect understanding and actions. Doubt is failure to believe in the existence of truth, the reality of good and evil, and the efficacy of karma. From such doubts are born false views that in turn obstruct faith in the Three Treasures. Of course, earnest, constructive doubt can lend strength to the pursuit of the ideal, but destructive skepticism serves no purpose at all. Such futile doubt is criticized in the six fundamental obstructions.Basic Buddhist Concepts