structure of man's body, any incentive, instinct and dispositionhas a vital role in the structure of his spirit and soul, and only in case of deviation from normal condition and disturbance of the balance, they will appear dangerously and fatally.

For instance, who can deny the role of" wrath" in man's life? Suppose when the rights of a person are transgressed. If all ofreserve powers of his body are not excited and mobilized thanksto the wrath, is it possible for him to defend his rights in acomposure mood, in which he may not utilize more than onetenth of his reserve powers? But when this anger and wrath isdeviated from its main path, and is not any more a powerful toolunder control of intellect, it alters man into a fierce animal whodoes not recognize any boundary.

In addition, the role of man's moderate desire to wealth, rankand such like in more attempts for development and progress isas obvious as the destructive effect of mammonism and ambitionthat is extravagance in these desires.

Thus, as disturbance in corporeal balance is alwaysaccomp anied with undesirable results called" disease", disturbance in balance of spiritual powers and instincts anddesires too is considered as a sort of" mental disease", and ethicsscholars call it" heart- sickness".

This concept has basically originated from Holy Quran tathas considered hypocrisy of a hypocrite as a disease, where itsays:.

فى‌ قُلُوبِهِمْ مَرَضٌ فَزادَهُمُ اللَّهُ مَرَضاً.

In their heart there is a sickness and God has increased theirsickness( due to their evil deeds ).. [1]

[1]Cowsura (2) ,verse 01