Hearthkeeper's Canticles are short poetic prayers that double as mnemonics to aid in a cleric's engineering duties. Anything from scientific formulae, such as Ohm's Law, to procedural checklists, such as the method for safely shutting down a star hearth, are rendered as canticles. Memorizing these canticles is part of a hearthkeeper's seminary formation.

Other professions that emerged from the Bright Way, such as farspeakers and healers, have similar traditions. The canticles referencing scientific laws are still widely known even in secular circles. This includes a canticle putting forward the scientific method itself, which is used by farspeakers to systematically troubleshoot networking issues.