A thought from Reb Yaakov Leiner of Radzin (Beit Yaakov) about Purim.
When the Israelites fought Amalek, Moshe lifted his hands above his head. This is expressive that action – which comes from the heart – reaches a place that the mind can never reach.
We express this on Purim with imbibing alcohol until we cannot consciously tell the difference between Haman and Mordechai.
The intent is that even at such a level his action will naturally concur with G-d’s will and at this level his sins are transformed into good.
For only in ego and consciousness can be there be sin, but one transcends the mind they are one with G-d.
(Beis Yaakov, Pg. 148)