Why did Imam Khomeini not encourage his grandson to perform midnight prayers?

Imam Khomeini used to embellish himself in front of mirror

Friends and pupils of Imam Khomeini, the late founder of the Islamic Republic say that he used to attach great significance to punctuality, discipline and cleanliness.

A memoirs by Imam Khomeini’s wife

Imam Khomeini Employed Philosophy in Seminaries

Imam Khomeini the world spiritual and religious leader employed the philosophy and taught the students, promoted rational sciences along with traditional lessons across the seminaries.