Descry

The Descry above the entrance to Church Dungeon Level 1 in Fellshrine Ruins.

If you ask Eramir in the Forest Encampment about the Fellshrine Ruins, he says:

The Fellshrine is a shadow of what was once good in Wraeclast.

That sigil etched into its stones? It's a Descry, from when the Templar truly stood for something. To the ancestors of Oriath, the Descry was a flickering torch in the night. A source of inspiration and comfort.

Sad thing about torches... they go out.

Although there are a few patterns and the occasional face carved into the stone of Fellshrine, there are no symbols except for the one directy above the entrance to Church Dungeon Level 1, where a figure is depicted holding a shape with three vertical lines and two curved lines. This is presumably the symbol of the Templars' god, and by extension the Templars themselves.

Other uses

This symbol is used in various contexts in the game, consistent with the idea of it symbolising divinity or holiness.

The Descry is prominently displayed on one of the notes on the Noticeboard in each town.

A slightly-modified Descry (with the middle bar split) is part of the Consecrated Ground effect produced by Zahndethus' Cassock.

File:Immortal call.jpg The Descry is shown above the player when they invoke the skill.

The Descry is overlaid on the shield of a character using the Tempest Shield skill.

The Descry is projected onto the ground around a Vaal Totem with the "Allies cannot die" aura.

Origins

Although there are no canonical explanations of the origin of the Descry, we can make some guesses. "Descry" is an old word meaning "to catch sight of" or "to discover". Because of the reference to seeing, it may be relevant that the Descry's two curved lines resemble the outline of the human eye. Also, the Templars' religion uses eyes as symbols in other situations so this fits right in.