The Fair Folk use gossamer to make the Wyld what they want. The Lunars use moonsilver to change it, and reality, when they need to.
Silver represents the purity of formlessness. Each form is only a temporary image that isn't reflective of the real substance. Lunars have an immunity to the powers of the Fair Folk because their Essence is incoherent like the non-sentient thing of the Wyld. They shouldn't be able to exist in Creation.
"Dreams can't hurt you. Dreams aren't real."
