The candlestick itself has no meaning; it is merely a brief ledger of all the funds in the market.
Therefore, when we look at candlesticks, we are observing the trajectory of capital flow. And what does capital represent? It represents the market participants using real money to support their views, whether they are bearish or bullish.
Candlesticks can reflect the opinions of market participants, thus giving them significance.

【Candlestick Period】
There are many types of candlestick periods in trading software; the smaller the period, the smaller the amount of capital contained in the candlestick. The larger the period, the larger the amount of capital contained in the candlestick. The number of candlesticks also works the same way; the more candlesticks, the more capital contained.
Large funds are not easily influenced, while small funds are easily affected. This is also why candlesticks in a few-minute period fluctuate rapidly.

【Single Candlestick】
Each candlestick is formed by four elements: opening price, closing price, highest point, and lowest point. From these four elements, various other types of candlesticks evolve. Regardless of how they change, they reflect the situation of capital competition. The smaller the period, the smaller the amount of capital contained in a single candlestick, making it easier to be influenced.

【Shadow Candlestick】 Diagram 1
A shadow candlestick is formed when the price quickly retracts from the highest point or quickly rises from the lowest point.
When a candlestick shows a shadow, it indicates that the price spent a short time at the highest or lowest point of that candlestick, reflecting that capital is willing to quickly participate in the market at that price.

【Long Body Candlestick】 Diagram 2
A long body candlestick is driven by capital; the longer the body, the stronger the corresponding directional force (excluding the case when one stretches the candlestick in the software, haha).

【Candlestick Patterns】 Diagram 3
Candlestick patterns are formed by many candlesticks, indicating that more capital is involved and thus harder to influence. At the same time, patterns can more clearly allow market participants to observe the intentions of other participants.
Common patterns include rectangles, flags, triangles, and head-and-shoulders.

【Key Positions】 Diagram 4
Prices that candlesticks (i.e., capital) repeatedly touch many times without breaking through, or rarely breaking through, are key positions.

Conclusion: Simply learning to read candlesticks does not guarantee long-term profits. Candlesticks are a tool that can help us formulate trading rules and establish consistency in trading. Only by gaining a probabilistic advantage in the trading world can long-term profits be achieved.

"What are the differences between candlesticks of different time periods?"
The candlestick of 1 minute contains less capital,
The capital of 1 hour is greater than that of 1 minute,
The capital of 1 day is greater than that of 1 hour.
Candlesticks with small capital are more easily manipulated (the same applies to cryptocurrencies with small market capitalization), so key levels for small capital, such as those on the 1-minute level, can easily become invalid.

A little note when looking at K-lines: wait until the K-line closes before deciding whether to buy.
For example, the one with #btc looked like it was about to plummet, but ended up bouncing back after buying.