Divine Mind (3.5e Feat)
From D&D Wiki
Divine Mind [Psionic]
The powers of the mind and divine combined.
Prerequisite: Human or Elan,Must have a minimum of 3 psionic charter levels in one class and 3 minimum divine charters levels in one class.
Benefit: Stack the level of any one psionic class and any one divine caster class for the purpose of caster and manifester lvl, power points, spells per day, spells and powers known, and max level of spells and powers.
Normal: The class levels count separately for each.
Special: This feat can only be taken once.