"Let me tell you, I had the shaping of things in this world" is a statement where the speaker reflects on their influence over how things came to be, implying a sense of control or understanding of life's arrangements.
They humorously suggest that if their role was different, everyone would be dressed in fine silks, riding white horses, and living a luxurious life, eating only sweet delicacies like whipped cream and strawberries. This exaggerated imagery highlights the contrast between reality and idealized luxury, adding a touch of humor or fantasy to the statement.