The simple answer is to make money. There are two ways this can happen
1. Share price appreciation
If the value of the share itself rises, you might be able to sell the shares for a profit. Alternatively, you can keep holding the shares, and if the company continues to be successful the value of your shares could rise.
2. Dividends
If a company you hold shares in pays dividends, you’ll receive dividend payments. If a company is successful and manages to grow profits over time, the amount it pays out as a dividend can increase.
Investing in dividend paying companies can in fact be deceptively simple and surprisingly powerful.