The title, "Exigencies," means urgent demands, and the three short stanzas feel like pressures pushing in on a life. The first is almost a shrug: time is too great "to make use of." It's an odd, slippery idea. Maybe there's too much time to handle, or maybe it's too big to ever put to work.
The second stanza turns to a beehive image. Something "hived in glass" is on display, protected, observed. The speaker warns that you might be producing honey, something sweet and useful, "not love." Productivity and affection get separated, and productivity looks like the lesser prize.
The last stanza is the sharpest. A woman cuts off her own breast "out of convenience," a flat phrase for a shocking act. The poem doesn't say why, so readers must decide what to make of it.
The mood is cool, unsettling, and detached. The speaker seems wary of lives run by practicality, where even the body is given up for ease.