SPX Volume profile support and gap through. Must know tool

I have taken a volume profile across the rally to project Low value nodes and high value nodes to find support levels during the decline. I simply cannot emphasis enough how valuable this tool is if learn to use correctly. I use this conjunction with geometry (hidden here)

Most us know prices will come to fill the price gaps in the future, but LVN and HVN can provide information that price and volume cannot provide on their own. Eg a large bar could have a heavy volume, but you wouldn't know at what price the volume was, whether it was at the opening or closing, unless you look at the VP. Inspite of a huge volume there could be a price gap hidden in the bar