Everybody has sacrificed a lil bit of something, there time, money, energy to someone or something.
When you sacrifice it should give you a feeling of joy and love because you were able to help someone who was really in need when you didn't have to. Its the fulfilment of knowing you might not get anything in return but that is the beauty of it. So many gods, world leaders have sacrifice there lives so we can live a better life. Lets make them proud. Lets set an example.