The Christian walk is not a smooth, paved straightened path: but rather, a skinny, challenging path filled with obstacles, roots, and affliction. As we, often faint, weary, thirsty souls, travel on this narrow path; God uses these afflictions—or “roots” on the path—to mold us, change us, test and try us; to show us His statues and teach us His ways.
There is a reason for affliction, dear Christian.
Psalm 119:50 KJV
 This is my comfort in my affliction: for thy word hath quickened me.
Psalm 119:67 KJV
 Before I was afflicted I went astray: but now have I kept thy word.
Psalm 119:71 KJV
 It is good for me that I have been afflicted; that I might learn thy statutes.
Psalm 119:75 KJV
 I know, O Lord, that thy judgments are right, and that thou in faithfulness hast afflicted me.