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However, what Daoist Shangqing Tong Tian saw was not this cluster of islands, but the as-yet unactivated Spirit Vein hidden beneath them.
According to his calculations, the Spirit Vein here was indeed one from the East Sea, and while it did not match Kunlun Mountain, it could still serve as a Saint's Daoist School.
This Spirit Vein was an important one of the East Sea, simply not yet activated.
The East Sea, where the Dragon Clan resided near the East Sea Sea Eye, was naturally abundant in Spiritual Energy.
The Immortal Court, encompassing Penglai, Yingzhou, and Fang Zhang, strictly speaking, were not Spirit Veins of the East Sea, but Spirit Veins cultivated by the three Immortal Islands themselves.
These three Immortal Islands were transformations from degraded fragments of Chaotic Space and were inherently rich in Innate Spiritual Energy, making them a sacred place.