Thankfulness

Since faith consists of two halves, the first being thankfulness, and the other being patience, it is important for the person who admonishes their soul, wishes to safeguard it, and prefers its happiness, not to neglect these two great principles, turn away from these two treaded paths, and to make their path and journey to Allah between these two paths, so that Allah, the Exalted, places them, upon their meeting, in the better of the two parties.

Source: http://en.islamway.net