Meaning of ‘Muslim’
Muslim simply means anyone who truly and fully obeys the one and only true Almighty God. Merely claiming believing in God does not necessarily means a person truly and fully obeys Almighty God. The person need to worship ONLY the true God as how God wants to be worshiped and not as what the person thinks God ought to be worshipped.
By this definition, even the sun, the moon and our heart are also ‘Muslim’ as they obey the law of God. The Moon orbits around the earth, the earth orbits around the sun while our heart keeps pumping blood to the body. Imagine if one day the heart ‘decides’ to disobey its purpose of creation, instead of pumping blood it pumps water to the body, what will happen? We would die! Similarly when human beings choose to disobey God then there will be chaos around us.