You may also create great hardship for people in various parts of the world. I'm a caring person, too, and I used to pass them on until I discovered most were hoaxes. I also learned that many people throughout the world sacrifice to pay for time spent on the Internet. Receiving chain letters make their lives much more difficult. Usually they have to pay to download every message.
Time equals money.
This is supposed to either spread love globally, get or give money, or save the lives of countless innocent people. Almost always, there's a call to action. It's usually full of concern, and suggests immediately forwarding it to everyone who needs to know. But there are some that are more relaxed. Do not keep this letter.