Another source of income
Ask yourself the following question. Would I like another source of income without getting a second job? If your answer is yes then you are at the right place. Think about this for a moment. You go to work (using your mind and your body) in order to make a living for you and yours. Now, think about sending your money to work (using capital) in order to make a living for you and yours. The latter is what wealthy people do and now you can also.