Different times different things will be made known to you, so different things will stand out to you.
Here is Luke 2:
10 And the angel said unto them, Fear not: for, behold, I bring you good tidings of great joy, which shall be to all people.
11 For unto you is born this day in the city of David a Saviour, which is Christ the Lord.
To YOU and the good tidings are what is told about in the book of Revelation.
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1 Nephi 14 is what Nephi wrote about his vision.
Lord asked John to take care of his mother likely because he would never die... That makes sense to me because he had brothers who would naturally already take care of their mother.
A new perspective given regarding immortal people's who could have been withdrawn for a purpose during the dark ages.
From Revelation 1:
8 I am Alpha and Omega, the beginning and the ending, saith the Lord, which is, and which was, and which is to come, the Almighty.
If one person is, was, etc. And he stays the same, that scripture would be another way of saying that nothing ever changes.
Description of the Savior:
White hair - represents purity
Gold - truth
Waters - soothing because it has all the elements (notes) of music
Fire in eyes means drawing in and comforting or giving intelligence.
Sword represents truth coming out of his mouth.
To me white hair would make him stand out in a crowd or from what he used to look like, also white hair comes with age.
Affliction for 10 days... 10 represents innumerable
I cannot remember what a star represents, but I suppose it provides directions.