What does it mean to “practice” Stoicism?

Two ancient Greco-Roman pankration wrestlers, image by Midjourney.

We hear a lot that Stoicism is a “practical” philosophy, and that we need to practice “spiritual exercises.” I too have written about this, on several occasions, including co-authoring a whole book on the topic, together with my friend Greg Lopez. (See also these articles here at The Philosopher Garden, not to mention my almost complete 54-part series on the topic.)

Moreover, there is ongoing research, carried out among others by m...