Meaning of each of these sentences in John Donnes poem "The First Anniversary"

In the book "Origions" by Neil deGrasse Tyson and Donald Goldsmith, at the end of the Preface there is a part of John Donne's Poem that I want each line to be writen in simple English so that I could understand it. Thank you

And new philosophy calls all in doubt,

The element of fire is quite put out,

The Sun is lost, and th’earth, and no man’s wit

Can well direct him where to look for it.

And freely men confess that this world’s spent,

When in the planets and the firmament

They seek so many new; they see that this [world]

Is crumbled out again to his atomies.

’Tis all in pieces, all coherence gone . . .