What dose this poem mean?

i really need help analysing this poem by Edward Taylor
I can't find any analysis of the poem anywhere on the net so any help would be greatly appreciated. What dose this poem mean?

Upon A Spider Catching A Fly
Edward Taylor
Thou sorrow, venom Elfe:
Is this thy play,
To spin a web out of thyselfe
To Catch a Fly?
For Why?

I saw a pettish wasp
Fall foule therein:
Whom yet thy Whorle pins did not clasp
Lest he should fling
His sting.

But as affraid, remote
Didst stand hereat,
And with thy little fingers stroke
And gently tap
His back.

Thus gently him didst treate
Lest he should pet,
And in a froppish, aspish heate
Should greatly fret
Thy net.

Whereas the silly Fly,
Caught by its leg
Thou by the throate tookst hastily
And ?'hinde the head
Bite Dead.

This goes to pot, that not
Nature doth call.
Strive not above what strength hath got,
Lest in the brawle
Thou fall.