The Metalwood Saga / Reference Guide

Full-series spoilers

Soulblind

Soulblinding, also known colloquially as gatesickness, is a debilitating condition caused by the misuse or overuse of gatesending magic, which wrenches a person's soul across dimensions too quickly. It results in catastrophic memory loss, leaving the victim's mind damaged almost beyond repair. The ancient order known as the Eglaria discovered that this condition can sometimes be cured by utilizing specific power modulation and a rapid repetition of a specific size of gate, which acts as a "cleansing" mechanism for the mind. Lorelei suffers from extreme soulblinding after her traumatic experiences, and nearly all the elves who originally traveled to Earth during the Sending were afflicted by it.