1) Studying Candlestick Charts is a way of analyizing past days functionality of traders in combination with the highs and lows of the exchange rate for the day?
It is pure plogy. If you understand candlestick patterns you can easily say what can happen. Candlestics can say you that the market is unsure or the major points of retracements, support and resistance levels.
2) From this we could expect what's going to happen now?
It is always uncertinity what'll happen following certain pattern. It is wise to wait and possess certain motion.
3) Open and Close is where majority of traders started and shut there positions?
NO. It is the open and close price of specific period. Like now open price and now close price.
4) High is the point where the currency was at its greatest price for this time period, wheras the Low is the lowest price of currency at the given time frame?
Yes.