A lot of guys have muscles. A lot of strong men in this world. I think it's important to show that even under all this strength there's a fragile side a side that can be affected.
This is the beauty of the Qur'an: it asks you to reflect and reason and not to worship the sun or moon but the One who has created everything. The Qur'an asks man to reflect upon the sun and moon and God's creation in general.