The term "Buddha Dharma" encompasses two aspects: Firstly, it refers to all the methods taught by the Buddha for attaining Buddhahood and liberation. Secondly, it specifically denotes the Dharma of Tathagatagarbha. While the first meaning is broader, the latter is more specific; most Buddhist scriptures primarily discuss the Dharma of Tathagatagarbha when referring to Buddha Dharma.
Since all dharmas manifest from Tathagatagarbha, does this include the dharmas of non-Buddhist paths? Certainly, for without Tathagatagarbha, there would be neither non-Buddhist paths nor their dharmas. Apart from Tathagatagarbha, there are no good or evil people, nor are there wholesome dharmas or unwholesome dharmas.
Everything apart from Tathagatagarbha is illusory. Nevertheless, illusory dharmas have their functions. Wholesome dharmas, in particular, serve to counteract unwholesome dharmas. One should simply avoid clinging to wholesome dharmas, and subsequently, even more excellent wholesome dharmas will arise.
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