The Prophet (pbuh) said, “the best form of worship is to gain an understanding” (scale of wisdom, h. 3946)

From Allah nothing whatever is hidden in heaven and earth. (Qur’an 3:3)

“Then your hearts became hardened thereafter and are like stones, or even yet harder; for there are stones from which rivers come gushing, and others split, so that water issues from them, and others crash down in the fear of God. And God is not heedless of the things you do.” (Qur’an 2:74)

Imam Ali (AS) said, “People are like trees, their drink is one but their fruits are different.” (scale of wisdom h. 6270)

Imam Ali (AS) said “Increase your remembrance of death, the day that you will rise from your graves and your standing before Allah, Mighty and Exalted, and your afflictions will become easier to bear.”