Dark Souls Remastered | Miracle: Vow of Silence location, starting from Ariamis bonfire

There is only one bonfire in the Painted World of Ariamis.

"Vow of Silence is a Miracle in Dark Souls. A secret rite of Velka that prevents magic casting within its area of effect. It creates an AoE field around you that stops all spell-casting, including your own, affecting Magic, Miracles, and Pyromancy. To cast a miracle, you must use a Talismans or Special Weapons that can cast Miracles."

Vow of Silence (Miracle):
https://darksouls.wiki.fextralife.com/Vow+of+Silence