As members of the different religious orders that follow each Titan grow in their studies, they will be given a copy of the Sojourner's Supplications. These can be used to reach out to the Titans for aid. The usual way to acquire one is once that level of skill is achieved by the acolyte, they will begin a pilgrimage to either the capital of the ---- or the city-state of ----. Upon arrival there they may seek out a copy from the great libraries that each nation holds and from there they can begin to call forth aid and power from the Titans, though is found unworthy these prayers may set back their training.
