Imam Khomeinithrough his statatement on various occasions in this regard said as following:
All the Prophets' trainings, teachings, knowledge and purposes were centered on ‘human being’. 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. Mankind, itself, is the main purpose of the assignment of the Prophets. (June 28, 1979)
The most dangerous and the staunchest enemy of human being is the 'self'. No other enemy is more detrimental than this enemy. (June 28, 1979)
What makes similar actions different from one another is the ultimate goal attached to them that forces human beings to take such actions. Then, God, the Most High will elevate people to the lofty position of humanity. (June 24, 1979)
Almighty God has bestowed a favor upon mankind by sending His messengers to train their spiritual side which is the most important one. The Prophets were assigned to purge, purify and then teach human beings the Book and Wisdom as well as to teach the control of the material aspects of them. Those who are materialistic, regard materiality in unleashing terms. The Prophets were assigned to train human beings in such a way that all material gains come under the control of the spirit. The basic principle is spiritualities, which no school of thought or ruling clique in the world pay heed to them. (June 24, 1979)
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. (July 4, 1979)
Imam Khomeini further said that a Muslim clergy should be pious and attracted to God, the Most Exalted, the Most High, wholeheartedly so that he will be able to educate society. He should, first be trained in order to be able to train society. (June 26, 1979)
A person who is well-educated but his knowledge is not accompanied with a purgation of his ethics and spiritual training, will do more harm to his country and to his people than those who have no knowledge. (June 27, 1981)
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Learning must be accompanied by refinement, Imam Khomeini explained