The Prophet (ﷺ) drew up a square and in the middle of it he drew a line, the end of which jutted out beyond the square. Further across the middle line, he drew a number of smaller lines. Then he (ﷺ) said, "The figure represents man and the encircling square is the death which is encompassing him. The middle line represents his desires and the smaller lines are vicissitudes of life. If one of those misses him, another distresses him, and if that one misses him, he falls victim to another."

[Al-Bukhari].