Allah Ta’ala says :

“VERILY, IN THE REMEMBRANCE OF ALLAH DO HEARTS
FIND SATISFACTION.”
[SURAH AR-RA’D 13 : 28]

The coolness of the heart lies in Zikrullah, Durood Sharief upon Rasulullah صلى الله عليه وسلم  and the fulfillment of the commandments
of Shariah. Peace of mind and tranquility is found only in obedience.

Otherwise, the home will not offer any comfort, the children will not be the coolness of our eyes, wealth will make life miserable and everything will be intolerable…to say the
least.

O Allah, if You are not mine,
Then nothing is mine.
And if You are mine,
Then everything is mine.

When we will please Allah Ta’ala, then He will fill our hearts with the coolness and comfort of serenity and tranquillity. Irrespective of the external conditions, the heart and soul will enjoy peace and contentment. The person can be surrounded by difficulty but the condition of his heart will be comparable to a rose blooming amidst thorns