Imam Ali said:

Have you fully realised what Islam is ?

It is indeed a religion founded on truth. It is such a fountain-head of learning that several streams of wisdom and knowledge flow from it. It is such a lamp that several lamps will be lit from it. It is a lofty beacon of light Illuminating the path of Allah. It is such a set of principles and beliefs that will fully satisfy every seeker of truth and reality Know you all that Allah has made Islam, the most sublime path for the attainment of his supreme pleasure and the highest standard of his worship and obedience. He has favoured it with noble precepts, exalted principles, undoubtable arguments, unchallengeable supremecy and undeniable wisdom. It is up to you to maintain the eminence and dignity granted to it by the Lord, to follow it sincerely, to do justice to its articles of faith and belief, to obey implicitly its tenets and orders and to give it the proper place in your lives.

This Islam is the religion which Allah has chosen for Himself, developed it before His eyes, preferred it as the best among His creations, established its pillars on His love. He has disgraced other religions by giving honour to it. He has humiliated all communities before its sublimity; He has humbled its enemies with His kindness and made its opponents lonely by according it His support. He has smashed the pillars of misguidance with its columns. He has quenched the thirst of the thirsty from its cisterns, and filled the cisterns through those who draw its water.

He made Islam such that its constituent parts cannot break, its links cannot separate, its construction cannot fall, its columns cannot decay, its plant cannot be uprooted, its time does not end, its laws do not expire, its twigs cannot be cut, its parts do not become narrow, its ease does not change into difficulty, its clarity is not affected by gloom, its straightness does not acquire curvature, its wood has no crookedness, its vast paths have no narrowness, its lamp knows no putting off and its sweetness has no bitterness.

It consists of columns whose bases Allah has fixed in truthfulness and whose foundation He has strengthened, and of sources whose streams are ever full of water and of lamps, whose flames are full of light, and of beacons with whose help travellers get guidance, and of signs through which a way is found to its highways and of watering places which provide water to those who come to them. Allah has placed in Islam the height of His pleasure, the pinnacle of His pillars and the prominence of His obedience. Before Allah, therefore, its columns are strong, its construction is lofty, its proofs are bright, its fires are aflame, its authority is strong, its beacons are high and its destruction is difficult. You should therefore honour it, follow it, fulfil its obligations and accord the position due to it.