In the most crucial time of life, only religion will help you. Therefore it is important to let your money flow towards religion, the benefit of others. During Satyug (era of true value and use of money), one could afford to be attached to money, as it benefited all. Such wealth does not exist in this era. Why do wealthy businessmen of today suffer from high blood pressure and heart attacks? The culprit is the money of this era.
What is the nature of money? Money is mobile by nature. It will come and go, so use it for the benefit of others. When hard times fall upon you, the only thing that will help you is what you have given to others. Be aware of this from the start and put your money to good use.
When your worldly interaction becomes pure, when you have no desire to take that, which is not rightfully yours, the world will be yours. It will not matter then if you enjoy life, because you are also sharing with others. What else is there to do? Are you able to take your money with you when you die? Whatever you spend for others is yours. That balance will be at hand for you in your next life. So, if you want a balance for your next life, you should spend your money for others in this life. This sharing is for all living beings; even if a crow takes a bite out of your food, it will be credited to your account. But anything you spend on yourself or your children goes down the drain. Nevertheless, that is inevitable. You have no choice in the matter. If you only feed birds, animals, and not people, it is still considered feeding others, but because it costs less to feed animals and birds, a lesser amount will be credited to your account.
Reference: Book: Nobel Use of Money (Page #6 - Paragraph #2 - #5)