A bullish candle in the middle of a range tells you something different from a bullish candle after a return to a previous high. Both closed above their opening price. Only the second is testing a particular idea about an old resistance area becoming support.
Price action trading begins by connecting a visible response to the place and structure around it. A candle colour by itself supplies very little of that context.
Start with the question price is testing
Higher highs and higher lows describe a rising sequence. Inside that sequence, price can still fall, pause or fail to continue. An old high gives you an area to watch, not an instruction to buy.
Suppose price breaks above that high and returns. Buyers who missed the first move may see another opportunity. Some earlier buyers may add. Shorts may close positions that moved against them. Those actions could help the area hold.
Selling could also overwhelm that buying. The purpose of watching the return is to see whether the support idea gains evidence, not to assume it will work because it has a familiar name.
Separate what happened from why it may have happened
You can observe that a candle closed above an old high, or that a pullback stopped at a higher low. You cannot read the identity, intention or remaining orders of the people who traded there from those candles.
Explanations about profit-taking, exits and new positions can help you reason about a move. They should remain possible explanations. A story that sounds convincing is not evidence that a strategy has an edge.
Give the response a rule
In the matching lesson, one possible entry condition is a bullish close on the retest. That makes the response observable enough to assess. It doesn't make every bullish retest profitable.
The trade also needs a point where its idea has failed. A stop below the retest low uses that low as a reference. The distance between entry and stop affects position size, while the next obstacle helps assess how much room remains.
If the next resistance is close and the required stop is far away, a readable pattern can still leave an unattractive plan. Moving a stop just to improve the reward-to-risk figure changes the trade being considered.
Indicators can still help
An indicator may add information that is useful to the decision. The question is what it contributes and how its use is defined. Removing every indicator from a chart doesn't establish an edge any more than adding several does.
A process becomes easier to review when you can record the area, the response you required and what would disprove the entry before the outcome. That also makes it possible to see how often the same conditions fail. The ascending-triangle guide applies this reasoning to a specific breakout question.
Sources and example limits
This guide accompanies the price-action-trader lesson. Its charts are schematic examples, not historical trades, and it claims no tested performance.
CME's support-and-resistance overview explains the use of previous highs and lows as areas to assess. It does not validate the entry rule illustrated here.