But sometimes, investing your money may result to a loss, which is against the purpose of "saving" it from any other entities. Saving really helps, be it hiding the money under a pillow, a closet, or even putting it in a bank (which sometimes yield a small percentage gain) because you can get it from there in case an emergency situation happens. On the other hand, if you invested your money in a certain business, a period of time should take place first before you can get your investment in that particular business, because you cannot simply give them money and withdraw it whenever you like.
If you area good investor then most of the times you wont lose, or you gain more than lose eventually.
It's all about risk control, no pain, no gain lol.