Imam Khomeini and the reviving of Islamic civilization

what is Imam Khomeini’s view regarding Islamic civilization and according to him how can the Islamic civilization be revived? One of the scenes that has been very much neglected regarding Imam Khomeini is the aspect of his thoughts that make civilization.
According to Imam when Muslims pass four phases they will reach their well-being and greatness that was before and it was at the top of Islam. First getting to know the causes and the factors behind the decline of the world of Islam such as forgetting the teachings of making civilization that has to do with religion and an inclination regarding being aristocrats disagreement of the body of believers feeling helpless vis-à-vis foreigners.