"God says (in the Holy Quran), "Obey God, the Prophet and obey your spiritual leaders." (Surah 4, Ayat 59). "I swear by your Lord, they cannot become 'momins' unless they refer their disputes to you and are perfectly satisfied with your decision and they submit to the utmost limit." (Surah 4, Ayat 65).
Submission implies obedience to God externally and internally; and obedience to God is linked with the obedience of the Prophet and to the Imams. Accordingly it is the duty of every 'momin' to submit entirely to the Imams, He should act strictly according to their instructions. He should have implicit faith in them and should give expression to it openly and in secret. It matters little whether he finds their instructions agreeable to him or not, it matters little whether he understands their significance or not. He should persevere in carrying them out and disciplining his mind in this direction. The time is sure to come when he will find agreeable what looks disagreeable to him now, when the significance of what he fails to understand now will ultimately dawn on his mind.
It is a hard task for the 'momins'. The more they progress in the pursuit in this course of submission, the more they rise in the estimation of God and the Imams. Imam Jafar, peace be on him, says "No one can understand the nature of our affairs excepting the angels who are within the closest proximity to God, the Prophets, ourselves or those devotees of God whose hearts have been illumined by Him."
It is necessary for the followers of the Imams in particular and the people in general that they should discipline their minds and train themselves to act to the satisfaction of God. They should be devoted to Him, to the Prophet, and to the Imams from his progeny. They should be loyal to them and pay then the 'amanat' which God has deposited with us for them. This payment is a bounden duty on us. We should always be on our guard to see that we do not lower ourselves in the estimation of the Imams. We should never do anything which is disliked by them or is disagreeable to them."