C1162 Really
The Soul Altar was condensed from a rare material, and the Nether Emperor Space was a type of illusory medium that could actually exist.
When the Soul Altar and the Nether Emperor Space clashed, the two were completely different, but they were both mediums with common features. When they fused together, an earth-shattering change instantaneously occurred.
The Soul Altar was still a Soul Altar