Who are they? If you always walk on the street, or travel around the world. You will find some people, they sit by streets and look at you. If you pay attention on them, sometimes you will find a paperboard with "I NEED HELP!HOMELESS!" . These people are homeless people. So normally, what will you do when you see these people? Keeping walking or stopping and giving them money?
Why do we need to help them? Homeless people are everywhere around the world, they don't have enough food, they don't have a real house to live, they don't have warm clothes to wear in winter. But they still live in this world, they asked us for help, still try themselves to face to this world. Compare to us, we live in warm house, enjoy the air conditioner, watch YouTube or refresh Facebook again and again. We can enjoy all the things that we want, but they can't. Maybe they are thinking of what they can eat for next morning when we are having our dinner. Everyone is same when we were born in this world. Whatever they did before they became a homeless people, we still need to help them. Just because they live around us, we live in the same world. So, why don't we keep our money, use the money to buy some food or clothes for them? We shouldn't just care about ourselves, I know you will think this world will not change if you help that homeless people near your apartment. But if all the people around this world do the same thing? Will this world change better?
What can we do for them? We can do so many things to help them, such as clothes, food, a hug... If you are a student and you don't have too much money, you can just go find them and talk to them. They are not only need material needs, they still need spiritual needs, maybe your conversation can give them hope. If you are a business, you can buy them breakfast, and give them when you are on the way to your work place. We can do so many things, it just depends on do you really want to help them or not. Maybe they just need a smile, a hug, a cup of hot water. Remember to do, not just think what can we do.