Here shows another example of how to use the indicator to DCA. You see, like any indicators, it can't always 100% predict the future. Sometimes when you bought and price continues to go down. That's inevitable. Now you should consider some where to DCA. But where it might be? You are still in fear seeing red candles, what if you jump in and it continues go down further? If you hesitate, you might lose the chance to DCA at low price. This indicator will tell you where might be a good point to consider for a DCA.
What's more? You might notice some very high needles would be a good point to sell but the indicator doesn't say so? Sell it, by all means. There are more than just this indicator which affect the market.