New Critical Analysis: Data Gathering and Construal of Meaning; Interpretation

Farewell! thou art too dear for my possessing,         a
And like enough thou know'st thy estimate:               b
The charter of thy worth gives thee releasing;            a
My bonds in thee are all determinate.                         b
For how do I hold thee but by thy granting?               c
And for that riches where is my deserving?                d
The cause of this fair gift in me is wanting,                c
And so my patent back again is swerving.                  d
Thyself thou gavest, thy own worth then not knowing, e
Or me, to whom thou gavest it, else mistaking;            f
So thy great gift, upon misprision growing,                  e
Comes home again, on better judgment making.          f  
  Thus have I had thee, as a dream doth flatter,       g
  In sleep a king, but waking no such matter
.           g

Concordance link.