Which word or phrase is a synonym for the word doctrine?

The correct answers would be precept, creed or axiom.

The word doctrine means a principle that directs something. It could be a principle or doctrine in church or policy in government.  

For instance, the doctrine or precepts that are followed by the clergy in a determined religion. They have to do this and behave like that to following their doctrine. In the case of politics, the Monro doctrine in the United States that stated "America for the Americans."

a and b are the correct answer to what your looking fior

- "is not only a luminous passive watcher in the night sky, but it is a powerful force.

it does symbolizes love,   lust   and dreaming and is seen as a power symbolic force that determines and affects human behaviors and reactions.

in the context of the question it does remain you that he events are only taking place at night and the reader of the passage of time."