The subject is man, treated as Aristotle does, according to his TE¦os, and so Aquinas discusses all the ethical, psychological and theological questions which arise; but any theological discussion upon man must be mainly ethical, and so a great proportion of the first part, and almost the whole of the second, has to do with ethical questions.
In part 2 he discusses the "false or theological essence of religion," i.e.
Campbell, who also discusses the subject in Popular Tales of the Western Highlands, iv.
Kuragin is exquisite when he discusses politics--you should see his gravity!
There is no mention whatever of a portable box or construction beyond the darkened room, nor is there in his later work, De Refractione Optices Parte (1593), in which he discusses the analogy between vision and the simple dark room with an aperture, but incorrectly.