One reason is that he is never sure what he desires. Out of a hundred persons you will find one who knows what he desires, but ninety-nine say, "Do I desire, or do I not desire; I don't know. I think I desire, but I do not know if it is so." Ninety-nine percent among men is in this condition; they really do not know if they desire. One day they say, "Yes, I do," another day they say, "No, I don't think I desire." Therefore their desire is decomposed in the unclearness of the mind.