Divine Respite

 is an active skill that can be taught to Priests at level 56. It cannot be ranked up at later levels.

can be performed with a staff by the Priest as a very powerful self-heal spell. Although it appears weak from the description alone, the stats on the Priest's weapons and equips would augment the effect of this spell such that it would almost bring the Priest back to full health. The only downside to this spell is its huge cooldown.

Rank table
To obtain, one must find a Magic Instructor and pay a certain price of gold.

Glyphs
To glyph, a glyph must be obtained and learned only once. At level 60, a character has 50 glyph points available to spend on all available priest glyphs. Most glyphs, specifically common glyphs can be purchased from a Glyph Master, while fine glyphs must be looted from enemies.

(Disclaimer: As NPC shop prices vary depending on a variety of factors, the prices below are subject to variation. Only take them as benchmarks.)