Parshas Parah and Parshas HaChodesh can not be separated. The Chok alludes to the world above our own, the dimension of Rosh Chodesh. The present time-frame is subject to the dictates of a higher order. Klal Yisrael directs life according to its own calendar, in a time and place of their own. As our lives revolve around the four Parshios that reflect our birthright, on Seder night we live with the four cups that redeem us from affliction.
Redemption has four stages.
Eschem B'zro'a Nituyah U'Vi'Shfatim Gedolim. Beginning with servitude in Mitzraim, the historical experiences of the B'nai Yisrael trace their development, from the birth of a nation to full maturity. As a child in its mother's womb, the Jewish people did not exist as an independent entity prior to the exodus. G-d takes us out of hiding, and brings the nation of Israel to life. With the miracles of Yetzias Mitzraim, His Hand becomes visible throughout the world .