Nor lose possession of that fair thou ow’st;
Nor shall death brag thou wander’st in his shade,
When in eternal lines to time thou grow’st:
So long as men can breathe, or eyes can see,
So long lives this, and this gives life to thee.
Questions:

A. Where does the poem come from Who wrote it
B. What does "lines" mean
C. Interpret the poem briefly.