I like TRO, he's a character. To answer his question, the indicator is a measure of the current price in the context of historical price. When you change the lookback period of historical price (i.e., change the time frame), the measure changes accordingly. Just that simple.
Which is where "divergences" come from. As each of them measures a different aspect of price from the actual print, and as each of them individually can measure these aspects in a multitude of ways depending on the "settings", divergences are an illusion, at least insofar as they are manufactured. Like watching a 3D movie without the glasses.