Poise oneself for phrase
If someone "poises himself/herself for something", he/she gets ready or is prepared for something.
The country has poised itself for the most disastrous situation after the civil war.
You should poise yourself for the next semester at university.
It's high time Jack poised himself for the public criticism of his scandal.
The verb "poise" should be conjugated according to their tense.
A trouble-maker
Henry is such a shit stirrer.