The last son is based off Points of interest. example your overnight highs and lows. those would be specifically the Asian session highs and lows and the London session highs and lows. then we also like to mark out with a ray the daily highs and lows from the previous day or further days back depending on price direction as probable target for price to migrate to. this is done on the daily chart and the hourly if you're just beginning. make sure you have the indicator called Fractals by Rachael T turned on. fractals are significant points where price has reached a high or low across multiple timeframes. anyways, when we watch the charts on the 1 minute timeframe we are waiting for price or candles if you will to give us evidence that price is going to continue in its current direction or reverse at the points of interest we have marked on the daily and hourly charts. the trade can happen once we see the confluences needed like a market structure shift, with a fair value gap above or below the point of interest. there's some nuance to this but without typing a book this is it..the "Last Son"