For the first half of geological time our ancestors were bacteria. Most creatures still are bacteria, and each one of our trillions of cells is a colony of bacteria.
May is a very early time in the year and the weather is usually bad. You cannot run a fast mile race if there is a strong wind, because it makes your running uneven.
The Church as a divine society possess an internal principle of life which is capable of assimilating the most diverse materials and imprinting her own image upon them.