Most likely passage for the test:
Let Love clasp Grief, lest both be drown'd,
Let darkness keep her raven gloss:
Ah, sweeter to be drunk with loss,
To dance with death, to beat the ground,
Context: Tennyson is mourning his friend Arthur Henry Hallam, and he argues that you should be emotional. If you don't feel grief, then you cannot really feel love. You don't have to rationalize why things happen -- you can just be upset. And this is good for you.