At 3rd level, you become proficient in Performance and Acrobatics
At 3rd level, You may expend half of your movement or a ki point and move anywhere within within 5 feet of a creature that is already within your melee range, you have advantage on your next attack against that creature.
At 6th level you become able to perceive and move with the natural rhythm of the earth.
At 11th level, You have observed how to affect natural rhythms and disrupt natural movements. You can spend a ki point as a reaction to impose disadvantage on an attack roll made by any creature you can see.
At 17th level, you have become perfectly attuned to many different rhythms. You know when someone nearby is going to attack you; You've seen how people's bodies move when they are lying etc.