"Noach had to be told to "Tzai Min HaTaiva" Go out. In the Taiva its very peaceful, moshiachdik, but you are limited and accomplishments are limited. When we leave the Taiva thats when we lose our comfort zone, we tap into Ein Sof and unlimited abilities. There is a time to go into the Taiva, and a time to Leave it. Follow what Hashem wants us to do. Our efforts, Hashem's results. We need to put our cheshbonos aside and Peru Urevu - both spiritually and physically. One who increases one soul its as if he build the world." (Likkutei Sichos Chelek Chof Hey, Parshas Noach, page 28.)