When you are standing and you see someone you care about struggling then lift them up. Something as small as a compliment can make the world of difference to someone when they are feeling down. They may think their situation is worse than it really is. You can try to show them the light of gratitude, the light of responsibility, the light of discipline, the light of focus, the light of empathy, the light of self respect and self love. Ultimately it is up to them to see the light but what would you want if you are feeling down?