We are all a traveler in this world, in other words, we live temporarily in this world, life is short. Life is short and some people have a good life, but some people are struggling. Some people are happy and some are sad. Some people are succeeded, and some are failing. Some are rich and some are poor. Some people have a good shelter, but some people don’t have a house to live in. Some people are educated, but some are not. This is happening in this world, and this is human life.