The ambiguous term "transcendental" never has one and the same meaning for different philosophical epochs or different philosophers.¹ It is not an exaggeration to say that the meaning shift of the term "transcendental" often reflects a development of philosophical thinking itself.² It is worth acknowledging that in the modern period Kant and the post-Kantian idealists interrupt the close association of transcendental thinking with the premodern ontological tradition. From then on, the term "transcendental" is often understood from an epistemological perspective. Different versions of Fichte's Wissenschaftslehre (WL) in the Jena period at least appear to continue the Kantian epistemological revolution.³