I also understand some knowledge about the blockchain and bitcoin. But there are still some questions, bitcoin system is how to run it?
Simplistically, I think that we can analogize this concept by this picture: bitcoin are found in networks and some people mone this coin from servers and patches by having an elaborate program to parse through the code. This bitcoin are then can be used for cashless and digitized transactions which can be sent via the internet. This couns have realisitcally no value but because of their uses in having transactions they have a real actual prive that can be encashed