Dealing with Lust and Greed According to Islam Sheikh Abd al-Hamid Kishk 145 pg PB According to the teachings of Al-Islam, the desires and appetites play a vital part in the makeup of every human being; they cannot be ignored. The children of Adam, unlike the angels, face the challenge in this life of mastering these forces within us. If we fail to do so, then we become the servants of our appetites and thus fall below the level of the animal kingdom.