Where money grow?

Hi, anyone care to tell me where money grow? Do you think its a crazy question?

Have been thinking what you can do with money, other than just putting in bank. About starting a business, well no confident on that. Doesn't have such money for any business.

Sometimes I do wonder who people can drive luxury cars and staying in huge house. My dad tell me that you have to work hard. He had been saving his entire life. I really hope saving is enough to spend for entire life.