Each day, oracles must focus their minds on the task of casting their spells. An oracle  needs 8 hours of rest (just like a wizard), during which she spends 1 hour in meditation. During this period, the oracle readies her mind to cast her spells. Without such a period to refresh herself, the character does not regain the mana points she used up.

Once per day plus an additional time per day per 5 levels an Oracle using the Mana Point system can apply a metamagic feat that they have to a spell-like ability at no additional mana point cost unlike other caster classes. First one is at 5th level.