Hidden Bullish DIvergen on EURUSD 4H chart, long continuation???

Hello everyone, Good Morning to you all!!
SO, after looking at the EU chart with the TF of 4H, i found that the price getting higher while the stochastic indicator (i use 8,3,3) getting lower. According to what my mentor said, this is one the indication that the chart will continue its trend which is BULLISH.