Aim directly at the first building. This is pretty and straight forward. You will mainly rely on the timing and angle of your jedi power to pass the stage with full mastery.
Power Activation Point
Activate the power as you are about to hit the building blocks.
First Shot Result
You should be able to kill the first three pigs as your bird flies into the building. The block that you sent flying with your jedi power will take care of the last pig at the bottom of the planet. The three stars will then be yours as the reward.