If you follow through on an Indian theme, then reading up on advaita might be errrrm.. illuminating! It is a totally different concept to that of the Buddha, leading to the possibility of a different form of Illumination.
Nysalor, Arkat, Old Good Shadow, Draconic, Zho Lath Ey (sp?) are some of the mystic traditions that we know have had a role in Peloria, for example.
Each form will have its own approach even if they are functionally indistinguishable to the commonality.