The moral is that my personal associations with cups are much more heavily Intuition and The Unconscious & much less about everyday feelings, which is what I get for learning from a manual that was rather too happy about the Golden Dawn (might've been Waite's book, or a 1970s edition of it with some extra introductory matter).

I'm sure there are other traditions for playing cards, but it's easy to match the suits and go from there!