If you understand what passive income is, you will know that the holy grail of achieving passive income is creating a product that will continue to generate revenue even when you are sleeping! In other words, a passive income stream should continue to work for you even when left on autopilot. Now, if you do a Google search, you will find that there are many ways to achieve this - dividend investment, collecting rent from properties, online consulting are just a few ways you can go into in order to create the freedom that you always wanted in your life. What about selling a digital product? What exactly is a digital product?