English Literature. Andrew Marvell's "The Definition of Love"

My love is of a birth as rare

As ’tis for object strange and high;

It was begotten by Despair

Upon Impossibility.

Magnanimous Despair alone

Could show me so divine a thing

Where feeble Hope could ne’er have flown,

But vainly flapp’d its tinsel wing.

And yet I quickly might arrive

Where my extended soul is fixt,

But Fate does iron wedges drive,

And always crowds itself betwixt.

For Fate with jealous eye does see

Two perfect loves, nor lets them close;

Their union would her ruin be,

And her tyrannic pow’r depose.

And therefore her decrees of steel

Us as the distant poles have plac’d,

(Though love’s whole world on us doth wheel)

Not by themselves to be embrac’d;

Unless the giddy heaven fall,

And earth some new convulsion tear;

And, us to join, the world should all

Be cramp’d into a planisphere.

As lines, so loves oblique may well

Themselves in every angle greet;

But ours so truly parallel,

Though infinite, can never meet.

Therefore the love which us doth bind,

But Fate so enviously debars,

Is the conjunction of the mind,

And opposition of the stars.

In this poem line of love is paralleled to the line of geometry due to the trend which has been dominating XVII century, all is related to shows and spectacles, the way of expression is succinct. 

Apparently all the poems had certain pattern, their authors were very economical, very compact, very concrete, very concise, and very allegorical. 

This poem is a pure allegory, it speaks and means something utterly contrary, different. 

The poem speaks about Love, magical, spiritual love, which is described by lines, lines are symmetrical, perfect, unique of its kind. 

The Love is divine, what seems to be so wonderful, a bliss of happiness, will never come true, it forever becomes unfulfilled and impossible to obtain. 

The perfection described by the author is spiritual, transcendental and perpetual. 

At the very beginning author welcomes Us with allegorical figures, portrays Despair, Hope and Fate which speaks for love, love loss and heart-breaking. 

The aim of love is to meet two hearts, a task very enduring, impossible, sublime and unreal.  

The poem is not clear, in contrary it is a deviation, the love One wants to become true is nothing but Despair; Hope is an abstract notion, it never be present, Hope will never come close enough to join two lovers, though, it must be forgotten, there is no hope for this Love. Fate 

"... drives iron wedges...". 

It touches the Lover and the subject of his affection. It cannot be changed. Fate forbids lovers to come together, to join and being loved by one another. The lovers will always be "...distant poles...", never meet each other.

The lovers' love is compared to two Infinite Lines, they create a perfect circle, due to the fact that the lines are parallel they never intersect, which is disastrous to the Lovers. It kills their Hope and enriches Despair. It is a malicious Twist of Fate, the only connection might be only spiritual. 

According to Marvell the mind is distinct to physical body, it simply must have been diversification of two unique spheres; spiritual and physical.