From the Spiritual Tree
The Quran promotes modest behaviour, its culture being that of modesty—an incomparable virtue. The translation of the relevant verse of the chapter Al-Furqan (The Criterion) of the Quran is as follows:
When one discovers God, one discovers at the same time that the only possible way for a person to conduct himself is with modesty. Modesty stems directly from the realisation of God. It is not possible to separate it from belief in God. The believer’s personality is a modest one in the complete sense of the word. Modesty has twofold benefits: first, it makes one a better member of society. Second, it makes one a successful candidate for Paradise. Modesty is good for the present world and the world hereafter.
Modesty is necessary to find the truth. In order to find the truth, one has to lose oneself, and nobody can attain this without the exercise of patience. Then the realisation of truth shows a man that the division of resources in this universe is a matter between the giver and the receiver. God is the Giver, and man is the receiver. After discovering this reality, the actual feeling that develops in man is known as gratefulness. That is to say that, in order to reach reality, man has to exercise patience and, in order to assimilate this reality within himself, he has to be grateful.
The greatest minus point is arrogance, while the greatest plus point is modesty. Arrogance means denying God’s bounty, and modesty means acknowledging God’s contribution. Therefore, according to the Quran, the arrogant should be punished for their ungratefulness, and the modest should be blessed with greater bounty.