Analysis of It troubled me as once I was

It troubled me as once I was—
For I was once a Child—
Concluding how an Atom—fell—
And yet the Heavens—held—

The Heavens weighed the most—by far—
Yet Blue—and solid—stood—
Without a Bolt—that I could prove—
Would Giants—understand?

Life set me larger—problems—
Some I shall keep—to solve
Till Algebra is easier—
Or simpler proved—above—

Then—too-be comprehended—
What sorer—puzzled me—
Why Heaven did not break away—
And tumble—Blue—on me—