If the Creator, God did not create 'gravity' on the earth,
people could not live because it is hard for them to move.
Both air and oxygen of the earth exist because of 'gravity.'
Because of 'gravity,' physical body is able to move so easily like that.
You cannot stand on your own strength, cannot move.
With gravity, the power of oxygen, and the power of the air, a person exists by receiving the power as much as it is appropriate.
Know how the Creator creates for people to live on the earth. Know the mystery, be thankful to Him and love Him.