Rejoice with those who rejoice, and weep with those who weep.
Don't just sit back in your little box and examine what it going on around you, be a part of life. When you realize that something good is going on in another's life, be happy for them! So your world may not be perfect right now, but either it has been or it will be. You can be happy for other people. You don't have to carry your little rain cloud around all the time. Maybe it's time to let some SONshine into your life. Let Jesus help you, so that you can be happy for others and maybe when you see them weeping, you can be there for them too. Let them know that you do care. It could be that they feel they are so alone and that nobody really cares for them. Ask God what can He do with you today. Look around, you will find somebody with rejoicing or weeping. Be there for them! You will need somebody there for you in the near future when you are either rejoicing or weeping.