Lydia (LIH-dee-ah) is the Power of light, inspiration, and reason. She usually shares her worshiping area with some allied deity, such as Phyton (in which case there will usually be a garden). Her temples are often very beautiful and relaxing, with stained glass windows, open courtyards, and constantly playing harpists in the background (there is always non-stop music in the background of every temple to Lydia). Clerics of Lydia strive to celebrate all attributes of their Power and to promote positive forces such as healing. Lydia's church has an open policy on all records, for the power hates secrets and those who would hoard information to the detriment of others. Her teachings are presented in song form so that they may be easily remembered, and her church often converts current and historical texts into ballads.

People must gain knowledge to better themselves. Music is the key to learning, and the light of the day lets one see their own ignorance.

Ceremonies to Lydia are always held outdoors and consist of prayer and meditation, usually accompanied by music. Rainbows are sacred to Lydia and her clerics will stop whatever they are doing to pray when a rainbow is visible.

Clerics of Lydia must encourage members of their flock who show artistic talents. They must also promote advancement in all fields of knowledge along with vigilance against the forces of evil. Her church uses education to uplift women from lesser stations in life; thi stends to make her unpopular with patriarchies. Most of her clerics are women. They discover and spread information whenever they travel, and are often found in the company of clerics of Fharlanghn. They are required to help women in need of education, and they spend much of their time in villages teaching women and children how to read and acting as midwives. They travel to discover lost caches of information and song, preferring historical accounts of actual deeds rather than fictionalizations and hearsay tales.