“Our needed conversions are often achieved more readily by suffering and adversity than by comfort and tranquillity. … Father Lehi promised his son Jacob that God would ‘consecrate [his] afflictions for [his] gain’ (2 Nephi 2:2). The Prophet Joseph was promised that ‘thine adversity and thine afflictions shall be but a small moment; and then, if thou endure it well, God shall exalt thee on high’ (D&C 121:7–8). Most of us experience some measure of what the scriptures call ‘the furnace of affliction’ (Isaiah 48:10; 1 Nephi 20:10). Some are submerged in service to a disadvantaged family member. Others suffer the death of a loved one or the loss or postponement of a righteous goal like marriage or childbearing. Still others struggle with personal impairments or with feelings of rejection, inadequacy, or depression. Through the justice and mercy of a loving Father in Heaven, the refinement and sanctification possible through such experiences can help us achieve what God desires us to become.”

Source: "The Challenge to Become," Ensign, Nov. 2000, 32