The concept of line upon line, precept upon precept has been reaffirmed to me again today. When the Spirit of the Lord Nephi if he understood the mission of the Savior his reply in verse 17 reads: "And I said until him: I know that he loveth his children; nevertheless, I do not know the meaning of all things."
Even Nephi, a spiritual giant had to learn little by little.
He started our first knowing that God loved him, and from there his knowledge was taken to unimaginable heights. By knowing just that very basic principle so many other things can be unfolded to our minds.
First: Faith in the Lord Jesus Christ -- The rest after that comes as we are ready for it.