Monotheism is not restricted only to the oneness of God. It must be applied and extended to all the aspects of our life. As an instance; a monotheist does not rely on anyone other than Allah, and will seek refuge in no one but his Lord. I do not want to say that they ignore the natural means of life, and always adhere to supernatural powers; but I say; they do know that the head of the thread lays in God's hand of power and knowledge. This principle might be ignored by common people or by a layman, but the nearer stationed men of God do not ignore it, and if they do, it will be reckoned as a sin which deserves some sort of a punishment. Joseph forgot this principle for instance, and as a recompense, he was to remain in the jail for several years!