"In a world created with the letter beis (two) suggesting duality, there is a continuous cycle of life. Nature is continually creating and destroying, building and pulling down in one continuous rhythmical motion.

In the cycle of life, there is birth growth, maturity, and death, which gives rise to new life, birth, growth, maturity, and then eventual death. "A generation goes and a generation comes." (Koheles 1:4)

Yet, whether the great cycle of life is on the upturn or downturn we, as co-creators in the creation, can participate and either help move creation towards birth and healthier growth, or move it further along decay. The choice is ours!"
— Midrash (Rabbah), Homiletic stories told by Jewish rabbinic sages