This indicator basicly using 4 different calculations average.
And you can see this average as line on this script.
This line has 2 functions
1. Buy and Sell Strategy
-İf the line colored BLUE this means you can BUY (Long)
-İf the line colored RED this means you can SELL (Short)
As you can see the picture you can buy-sell and long-short with this line
You can use the line as resistance and support.
You can see when you can LONG and when you can SHORT with this strategy.