Everybody has tough times in life. When these times occur, it is natural to get a little upset, even angry. When you are emotionally mature, you understand that the world is not conspiring against you. You know that bad things do happen but it is up to you how you choose to react to them.
You could play the victim and wonder why nothing ever goes your way but you know that this will get you nowhere. Nobody likes people who continuously play the victim card. An emotionally mature person will take the time to experience their feelings about what has gone wrong. Then they will look for a way to move forward with positivity.
If you, or somebody you know, regularly resorts to playing the victim, this may be a sign of passive aggressive behaviour.