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The most important book of Mahayana Buddhism, Prajna Paramita Heart Sutra, is an important principle of Mahayana Buddhism. This is an important idea of Buddhism. Simply put, color refers to all things that are visible or invisible, and these phenomena are caused by cause and effect. Empty is the essence of things, and everything starts from scratch.
References:
Baidu encyclopedia-color is empty Baidu encyclopedia-color is empty