First of all, God, the Exalted has promised to His sincere servants that their names will be commemorated and mentioned in this world as well as in the world to come. One of the signs of their eternal life in this world is the presence of handsome buildings on their tombs to remind of their situation, way of life and piety to their Creator. As these pious individuals have played exemplary roles during their lives, their shrines keep alive their examples in the minds of people. This should be followed for winning happiness in this life and the life to come.