For most Christians and religious people the extent of true spiritual (conscious knowledge) is limited to their church doctrine or imagination.
They may consider reading the bible as acquiring spiritual knowledge.
True experiential knowledge taught by Christ is through inner conscious revelations.
We are talking about a living conscious relationship and not beliefs to memorize.
It is only through conscious revelations that we can receive mental, emotional, psychological and spiritual conscious healing.
Beliefs in doctrine and stories of the bible cannot do that.
We are talking here about a real living and conscious relationship with our real higher self within us.
To the aware soul the conscious knowledge of the universe is unlimited, if they are ready and able to receive it.
When the time is right and karma permits.
Robert.