The Holiday of Purim is all about removing all negativity from the world.
Haman represents negativity created when the world was at the beginning.
Read or scan the following sections to connect to the seed of the negativity. Meditate to remove and correct this negativity. This is the power of Purim. When we read the Megilah (scroll) of Esther we are able to inject the cleansing power that bestowed on us on this day.
Bereshit 1 (Hasulam #228 in Hebrew and English Zohar)
If you have the Zohar Hasulam (Heb or Eng) then I suggest start reading from paragraph #218
This part is from Tikunei Zohar (Old page #55. Hasulam Tikkun 21 #320)