Another one of my understanding of "Sonnet 7"

I think Sonnet 7 means:

The sun is rising up high into the sky; is when the poem starts with;

Lo! In the orient when the gracious light
Lifts up his burning head, each under eye
Doth homage to his new-appearing sight

… is like the sun is climbing up into the sky and it’s at its highmost pitch.
People continue to admire and adore its beauty and its glowing majesty like a strong king high up on a throne is when the poem reads;

“Serving with looks his sacred majesty
And having climb’d the steep-up heavenly hill
Resembling strong youth in his middle age,
Yet mortal looks adore his beauty still
Attending on his golden pilgrimage”

But when it sets, it fades and will loose beauty and the sky looks dark and old. It is just like when an old man dies without a son he will be forgotten too with no son to carry on his name and generation

.. Is towards the last few lines of the poem;

But when from highmost pitch, with weary car
Like feeble age, he reeleth from the day
The eyes, ‘fore duteous, now converted are
From his low tract and look another way
So thou, thyself outgoing in thy noon

The last line;

Unlooked on diest unless thou get a son

…to me is like if the man doesn’t get a son then he will be looked down by others.