Because we always need to be reminded:

Unto many this seemeth an hard saying, “Deny thyself, take up thy cross, and follow Jesus” (Matt. 16:24). But much harder will it be to hear that last word, “Depart from Me, ye cursed, into everlasting fire” (Matt. 25:41). For they who now willingly hear and follow the word of the Cross, shall not then fear (Psalm 112:7) to hear the sentence of everlasting damnation. This sign of the Cross shall be in the heaven, when the Lord shall come to judgment (Matt. 24:30). Then all the servants of the Cross, who in their life-time conformed themselves unto Christ crucified, shall draw near unto Christ the Judge with great confidence.

Why therefore fearest thou to take up the Cross which leadeth thee to a kingdom? In the Cross is salvation, in the Cross is life, in the Cross is protection against our enemies, in the Cross is infusion of heavenly sweetness, in the Cross is strength of mind, in the Cross joy of spirit, in the Cross the height of virtue, in the Cross the perfection of holiness.

Take up therefore thy Cross and follow Jesus (Luke 14:27), and thou shalt go into life everlasting.
Imitation of Christ, by Thomas á Kempis: Book 2, Chapter 12

A related post worth re-visiting: The Inspiring Story of Garvan Byrne

“In this you rejoice, although now for a little while you may have to suffer through various trials, so that the genuineness of your faith, more precious than gold that is perishable even though tested by fire, may prove to be for praise, glory, and honor at the revelation of Jesus Christ. Although you have not seen him you love him; even though you do not see him now yet believe in him, you rejoice with an indescribable and glorious joy, as you attain the goal of (your) faith, the salvation of your souls” (1 Peter 1:6-9).