Relation between volatility(vix) and market?

Why does market fall when vix(volatility) rises and vice versa?

Please tag the questions under the relevant categories.

Or is it Vice Versa? That is vix raises when index falls. Vix is volatility meaning how far the closing price deviates from the mean (not average).

Because stocks/index takes stairs while going upwards, there is not much deviation between moving average mean and the moving prices. But the same stock or index takes elevator down therefore the the deviation is far from the mean and hence the volatility --> Vix increases.

Simply put the green bars in the daily chart while going up is shorter and continuous while the red bars are taller on down trend.