This shows emotion through representing size of price moves with different colors.

Candlestick chart is a type of trading chart (like in forex trading) to visualize the price movement over a specific period of time (but in the video, it showed the 1-hr period per candlestick). It has four main components such as open, high, low, and close.  

Candlesticks are created by up and down movements in the price. 

candlestick chart is a style of financial chart used to describe price movements of a security, derivative, or currency. 

A candlestick chart is a style of financial chart used to describe price movements of a security, derivative, or currency.

Show the trend of market  in forex trading 

A candlestick chart is a graphical representation commonly used in financial markets for analyzing price movements of assets over specific time intervals. Each "candlestick" on the chart displays the opening, closing, high, and low prices for a given period. The body of the candlestick represents the difference between opening and closing prices, while the wick shows the price range. Candlestick patterns are used by traders to identify trends, reversals, and other price patterns, aiding in making trading decisions. These charts offer insights into market psychology and play a vital role in technical analysis.