It is narrated from Hazrat Abu Dharr (may Allah be pleased with him) that the Noble Prophet (peace and blessings be upon him) said: Successful is the person who has purified his heart for faith and has been granted a sound heart, a truthful tongue, a contented soul, and good character. His ears have been given the ability to hear and his eyes the ability to see. The example of the ears is like that of a vessel’s base, while the eyes provide a place for the things preserved in the heart. And successful is the person whose heart is a preserver.