It is a fact intimately connected with our own life and destiny. ‘ Your Lord is one Who cares for you and cherishes you ; you are dear to Him, And He is One : it is only He that you have to look to, the source of a goodness, love, and power. You are not the sport of many contending forces or blind chances. There is complete harmony and unity in heaven and you have to put yourselves into unison with it -by discipline in ranks, by God. Here is the mystery of the manifold variety of creation verging into the absolute Unity of the Creator. 

Commentary on Verse 4 Surah Saffat of the Holy Qur’an by Abdullah Yusuf Ali.