You are proficient in using divine magic and have discovered how to tap into divine sources of power. You begin as a novice, capable of casting 1st level spells. Regardless of whether your power comes from worshiping a deity or other sources like abstract ideas, personal beliefs, or universal forces, you will gradually gain more spells and unlock higher levels of magic as your mastery of divine energy improves.
This power can behave like any of the divine magic based classes available such as cleric, druid, oracle, and even hybrid classes like Paladin. The classes are merely guidelines for the unexperienced to follow, you are not locked into any particular one, and can instead develop any class features available to them.
Outside of the Forgotten Realms or Golarion you are able to cast spells of the 10th level and higher as the gods cannot reach you there.