True friendship is not fair-weather affection — it is constant, unconditional love that persists through every season. The parallel phrase 'a brother is born for adversity' reveals the deepest purpose of close relationship: the bond between brothers (and close friends) is specifically equipped and designed for moments of hardship and suffering. The truest test of friendship is how it holds under pressure.
Memory phrase: True friends love always.
Talk about it: What does a real friend do when times are hard?
Prayer: God, help me be a faithful friend always.