What is volatility NASDAQ

When we are talking about volatility if you look at the red bars in the lower indicator that is our IVR that gives us Implied Volatility rank this is how we gauge vol.
During high vol we see the markets enter into sell off periods, the major mistake people make is holding a long during phases where avg vol is rising. if we look from May to June we can see the vol was ever decreasing yet something changed in early September till now, we have seen volatility increase and base higher than previously had been. During this time notice how those holding long have seen lower highs. Now can IVR drop from here and the market recover yes, but if the avg vol continues to make higher lows then we could be looking at a situation where price has a possibility of quick painful drop. This is the meaning of higher vol yes we can see the market do consecutive days up but if the vol is higher now than in the past you can expect that rapid sell of that could destroy the up trend already made.