Eldritch energy recharges are only found in certain places in Legacy of Kain: Soul Reaver and also appear in the main Glyph chambers after Raziel successfully obtains each of the Glyphs. They are represented as a blue eye on the ground accompanied by glowing blue particles.[Soul Reaver][Soul Reaver/6][Soul Reaver/Miscellaneous]
When Raziel steps into one, the blue particles become golden and they completely refill his Glyph energy to his current maximum amount.[Soul Reaver]
Eldritch energy recharges are not named in game, but they are officially referred to as such in Legacy of Kain: Soul Reaver manuals.[Soul Reaver manual (US)] In the Prima guide variant terms are used such as "Glyph energy refill spot", "Glyph energy refill marker", "Glyph refill marker" or "Glyph energy refill".[Soul Reaver strategy guide (Prima)]
The Eldritch energy recharges are notably marked with an eye symbol; and such symbols are usually associated with the Elder God and his followers. It is not clear if the Eldritch recharges have the same association.[Soul Reaver][Soul Reaver 2][Defiance]