What are bitcoin inflows & outflows?

Could you elaborate on the concept of bitcoin inflows and outflows? I'm curious to understand how they impact the overall bitcoin market and economy. Specifically, what constitutes an inflow, and how does it differ from an outflow? Are there any significant trends or patterns in these flows that investors should be aware of? How do they relate to the price of bitcoin, and do they provide any insight into the future direction of the market? Your explanation would be greatly appreciated.