Ok, so again a brilliant name change! Because of the German connotation with happiness, which is not so easily associated with "Fortune" (always that money aspect first; tv doesn't help, with its Wheel of Fortune shows!).
Next, it may sound super embarassing on my behalf, Tarot afficcionado that I am, but I never, or at least not as consciously as now, noticed the Alchemical symbols, Mercury, Sulfur, Water, Sal, in this card, also traditionally present. Splendid how they shine golden out at us here!! That whole accentuation of the Alchemical Process THAT IS the rota, tora, Tarot - Tao path - road in your amazing Temple of Secrets is just completely spot on. It breathes the whole deck to life to place all the other cards in this lovely bio-rhythm curve over the wheel.