This discourse of the Alter Rebbe from Likkutei Torah explains how the animal offerings brought in the Temple symbolize the refinement of our own animal character.
A description of the two souls – G-dly and animal –- and how it is the purpose of the former to transform the latter into a willing partner in the service of G-d.
The inherent disadvantage of sudden inspiration is not only that it ends as quickly as it began, but that it may leave no trace of having affected the person at all.
The personal process of transforming inspiration into actual growth is represented in macrocosm by the timeline of events between the miraculous redemption on Pesach and receiving the Torah on Shavuot.