Comment by jdw64

To summarize your argument a bit, you are essentially saying, 'Christianity was originally a Jewish sect, so the current Trinity doctrine is wrong.' Generally speaking, Zen (Seon) moved from India to China, and after Bodhidharma, it began to emphasize self‑nature while incorporating Taoist concepts. Perhaps your argument might come from a perspective that is not East Asian but rather based on the original texts, possibly from the Indian tradition. In Mahayana Buddhism, Sunyata (emptiness) is the core of non‑duality, and it is actually somewhat different from your Theravada interpretation.

The problem is that the way Zen is used resembles the Seon traditions of East Asia, specifically Korea, China, and Japan, and those traditions are built on Mahayana emptiness with Taoist elements mixed in. Therefore, from the perspective of primitive Buddhism, what you say is correct, and from the Pali perspective, it can be called Jhana, but strictly speaking, that is difficult to call Zen[1][2]

[1]https://kabc.dongguk.edu/content/view?dataId=ABC_BJ_H0184_T_...

[2] https://www.ibulgyo.com/news/articleView.html?idxno=28814&ut...