Ah me, what form and grace are there! Its limbs how fine, its hues how fair! Transcending all that words express, It takes my soul with loveliness. O, if thou would, to please me, strive To take the beauteous thing alive, How thou wouldst gaze with wondering eyes Delighted on the lovely prize!

In plain words: Sita says the deer's beauty is beyond words and has captured her heart. She begs Rama to catch it alive so he too can enjoy looking at it.