Dark clouds brood.

It’s a portent of the storm and rain within.  A sign that something bad is about to happen.

Mother hens also brood.

If they have eggs that they want to hatch, they will protect them and never leave them.  A sign that something wonderful will come forth.

When you brood, what does that mean?

Are you thinking about all of the bad things that have, or are about to, take place?

Or are you pondering the future with eager anticipation?

Be careful which one you choose.