FWP:
SETS == DOUBLE ACTIVATION; EXCLAMATION; MULTIVALENT WORDS ( aab ); MUSHAIRAH
GAZE: {10,12}
SWORD: {1,3}
ABOUT aab : This verse makes excellent use of the protean aab (see the definition above): its sense of 'water'
has an affinity with 'tears'; its sense of 'temper' (as in steel) and 'sharpness'
have affinities with the 'sword' and the 'murder'; its sense of 'sparkle'
and 'luster' go well with the 'glance' of the beloved's bright eyes. Other examples of conspicuous aab wordplay: {12,3x}, with similar use of paanii ; {75,1}; {109,7x}; {193,2}; {227,3}.
This is a classic mushairah-verse: the whole verse builds up, while remaining uninterpretable, to the final punch-word aab , which is of course withheld until the last possible moment. And it's also a verse based on what I call 'double activation', since aab in its various meanings (see the definition and discussion above) becomes the strong-- and the only-- focal point of the verse. Other meanings and affinities radiate out from it like spokes on a wheel.
As Nazm points out, this verse also features another-- and different-- use of the idiomatic to ; for more uses, see {193,1}. Here it is a kind of sarcastic vaah vaah sense-- 'Bravo! Everybody should do it the way you do it!' (2a)-- with also a strong suggestion of 'As if anybody else could! Let them just try!' (2b).
Note for grammar fans: The adverbial 'in affection/intimacy' [lagaava;T me;N] is a 'midpoint' phrase that could go two ways: it could describe the doing of murder ('when your lover is in that state']; or it could describe the weeping ('when you are in that state'). In this verse the distinction doesn't seem too significant either way.
Arshi's suggestion of {10,11}
as a verse for comparison is an excellent choice.
Nazm:
That is, the tears from your eyes create in the sword of the glance such aab-daarii that I am slain. In this verse the meaning of to is that no matter how much anyone else might produce attraction in a glance, to give aab to the sword like this is something that no one else knows. (216-17)
== Nazm page 216; Nazm page 217