That door doesn't signify anything at all. That overall body would not necessarily mean something. That lamp doesn't imply anything at all. That signal would not indicate anything. That shadow isn't going to suggest anything at all. Despite its acceptance, ACIM is the topic of theological criticism. From a standard https://travisyeimo.magicianwiki.com/1951516/a_course_in_miracles_lesson_1_for_dummies