Is Shape Real? Controversies over the Nature and Reality of Shape in the Works of Vasubandhu and his Commentators

The classification of sense objects, especially visible objects, is a controversial issue in Abhidharma philosophy, with a significant part of the debate revolving around the nature and reality of shape ( saṃsthāna ). The purpose of this article is to expose the dynamics of the Abhidharmic debates over shape and unpack the laconic arguments we find in various works attributed to Vasubandhu and his commentators Yaśomitra and Sthiramati. Studying these arguments is essential not only to gain a better understanding of Abhidharma metaphysics. They also illuminate important aspects of the Abhidharmic theories of perception, such as their views on common sensibles or the relationship between perception and inference. Furthermore, as I point out at the end of the paper, appreciating the Abhidharmic debate over the reality of shape also sheds more light on the cryptic arguments Vasubandhu puts forward in verse 15 of the Viṃśikā .