So in my veins red life might stream again,
The speaker seems to convey an idea that life can be transferred to him from the person being spoken to. The previous line implies a loss of life from the audience with this line indicating a resurrection for the speaker. This sees like a pretty complex reference to mortality.
This living hand, now warm and capable Of earnest grasping, would, if it were cold And in the icy silence of the tomb,
I'm noticing that there's some enjambment in the clauses spanning between lines 1 and 2 and lines 2 and 3. I've only ever really recognized enjambment mechanically, but could it have thematic significance here?