Central point of the line on your cranium.
Imagine a line that connects the very tips of your ears.
Place the 1st patch on Governor Vessel 20, also known as DU 20.
Place the 2nd, 3rd, 4th, and 5th patch on the 4 corners of an imaginary square around the Governor Vessel 20.
The patches needs to be around 1 thumb length away from the central patch.