What is the principle of Zhuge Liang borrowing from the east wind when the Three Kingdoms burned Chibi?

Zhuge Liang's principle of borrowing from the east wind is based on weather changes and meteorological knowledge.

Battle of Red Cliffs, Cao Jun and Sun Liulian confronted each other on the south bank of the Yangtze River, and neither side could break through the other's defense. At this time, Zhuge Liang used the knowledge of weather changes and meteorology to help Sun Liu's allied forces win by predicting the arrival of the east wind.

Specifically, Zhuge Liang predicted that a southeast wind would come in the evening of the war by observing the change of air pressure and wind direction. He let Sun Liu's boat and camp run against the wind, so that Cao Jun's boat and camp were blown to the center of the river and could not be attacked. At the same time, Sun and Liu joined hands with the wind, approached quickly, and finally won.

Generally speaking, Zhuge Liang's principle of borrowing from the east wind is to predict the weather changes through meteorological knowledge and technology, make use of the influence of weather changes on the war situation, formulate corresponding tactics, and finally win.