Understanding where liquidity exists in the market can help enhance your trading success in a few ways:
1. It can help you understand where potential blocks of liquidation could occur. The market is often attracted to these block and will liquidate there.
2. It can help you confirm patterns that exist on you charts
3. It can help you spot new patterns which you may not have spotted previously.
Let's take a quick look at the "Liquidity Swings" indicator by LuxAlgo in this video.