In creating human beings, God utterly devoted Himself in His many efforts, giving all His heart and soul and the essence of His life. He totally poured out all His love and affection.
Why did God create human beings?
Explanations from Sun Myung Moon's speeches
Why did God create human beings? As this universe has physical form, God did so in order to manage and lead it through Adam and Eve, who would be the masters with bodily form.
God’s purpose in creating a human being was to have dominion over the incorporeal and corporeal worlds through him.