This week begins the six week period known as Shovavim. Shovavim is an acronym for the six weekly Torah portions Shemot, Vaera, Bo, Beshelah, Yitro and Mishpatim. The word Shovavim alludes to the Pasuk in Yirmiya (3:14), "Shuvu Banim Shovavim" - "return oh wayward children"... The Arizal taught that these weeks are especially auspicious for doing Teshuvah in the area of Shmiras Habris.
The six weekly Parshiyos of Shovavim deal with the slavery of the Jewish people in Mitzrayim and their subsequent redemption, all the way through the giving of the Torah on Har Sinai. The struggle for moral purity often follows the same theme, where a person often feels trapped and enslaved to their animalistic desires. Through Teshuvah and divine intervention, one can succeed to break free of the bondage to these destructive behaviors and become a servant of G-d.
The weeks where we read about the Jewish people's journey from slavery to divine servitude, are especially auspicious for own personal journeys from slavery - to becoming men of G-d.
(See here for more information on Shovavim).