There are three kinds of passive feelings,
which affect the heart and they are either
related to the past, which causes sorrow, or
related to the future so as to cause grief, or
finally related to the present so as to cause
distress.

If the heart is not pure or honourable enough, and distance from every evil and malice, then it is unworthy to love, know and aspire to Allah. On the contrary, the lowest description of man’s heart is that he loves and aspires to this worldly life instead to Allah, the Almighty. When man’s love, knowledge and aspiration is
directed in this worldly way, the heart becomes narrow and gloomy as it is distant from the source of its revival and life.


Subsequently, the hearts of man can be
divided into two kinds, the first of which is the heart of those, who incline to the Beneficent, which is the source of brightness, life, happiness, pleasure, delight and blessings.
The second one is the throne of the devil
where narrowness, darkness, death, sorrow,
distress and grief are settled therein. This
heart is obsessed by sorrow for the past, and grief and distress for the present. In order for a place to contain something, it
must be free from whatever contradicts it. This principle applies to mankind and all creation as well as to belief and desires. So, if the hearts is obsessed by belief in falsehood, there will be no place for truth.

–Ibn Al Qayyim (Al-Fawaaid)