One of the basic Islamic commands is recommendation to "Modesty" and "Moderation" which is in contrary to the category of "excess" and "defect". Undoubtedly, "excess" and "defect" would have grievous consequences and (Moderation) also would have its special effects and blessings.
This important issue involves all aspects of life; such as thinking, eating, clothing, earning and spending money, sleeping and worshiping, kidding and jesting, speaking and silence and many other matters. In this writing "moderation" is considered from different dimensions.