price follows volume (order size). even with price action, what kind of price action will have higher percentage or higher relevance
backtest using M1 charts and see where are the big candles (if average M1 candle less than 3pip, then multiply that by factor of 3~4 only to qualify as sudden big candles,)
draw horizontal lines around those big candles which are constantly tested many many times.
then observe what happens the next day when price retest those horizontal lines.
those are the levels which the banks use the most.

if u understand gambling theory and how casino win money, then u understand that not every price level has the same Risk : Reward.
same goes with bankers, they push it to that purple level to get better price (or to close their losing short position), then the price continue going up.
if the price breaks below purple box area, means the buyer already lost, so buyer turned seller, price would most likely go down.
these critical levels exists everyday, not so accurate if apply to cross pair because of 2 in 1.