There's an intensity here that sets it apart from every other sacred site we visited in Japan. Crossing that bridge literally represents stepping into the afterlife - and you feel it. The goma fire ceremonies here hit differently, conducted with absolute strictness and reverence. No photos, no casual tourists, just pure spiritual gravity.
The sense of Kukai's presence is palpable - Shingon Buddhists believe he's not dead but in eternal meditation here, waiting for the future Buddha. When they say 'sacred,' they mean it - this isn't a tourist attraction with some religious significance, it's a deeply holy site that happens to allow visitors.
The absolute silence except for the chanting during ceremonies, the dim lighting, the ancient cedars - everything works together to create this overwhelming sense of crossing between worlds.