They have all been assigned to train true human beings and to elevate mankind from this natural status to the lofty and high position of the supernatural and the heavens, Imam noted.
Mankind, itself, is the main purpose of the assignment of the Prophets.
According to Imam Khomeini, none of the regimes of the world but those of a monotheistic origin have focused on the spirituality of mankind and have sought to elevate them.
All the world regimes are seeking to utilize the material gains and establish a material system.
The Prophets, on the other hand, were basically assigned to purge and purify the human 'self'; to teach them the Book (the Holy Quran) and Wisdom and to control them.