Physically speaking, your body and my body are made out of the dust of the earth. The chemist or biologist will analyze it and tell us it is made up of so much lime, magnesia, potash, soda, fluorine, silica, iron and other trace minerals. Think of your body as something like a large city where people are dying and babies are being born at the same time. Just like this, the cells of the body are constantly breaking down and dying and being carried away in waste removal while at the same time others come into being. What a process...constantly dying and living at the same time.
Because of this process, scientists tell us that we will have practically a completely new body as far as the cell structure is concerned every seven years. If you are a fourteen year old, you will have had two new bodies since birth. AWESOME! But some parts of the body have been renewed even more frequently than that.
Yet, through all these changes, you, yourself, your own personality hasn't changed and you have vivid images of the life you have already lived. Your real memory is not only in your brain...it's in your cell structure and nerves. So the real you is built on physical, material, and a spiritual dimension as well as your lasting individuality.
But if you are a believer...the ultimate body change is yet to come! The Bible promises that one of these days there will be a body change of all changes! The Spirit of God will quicken your mortal body and change it into a body that is patterned after that of Jesus Christ! This is called the "glorious hope" for all believers! Are you really ready for this big change? If you are a believer...YOU ARE! If not...now is the time to get ready for the fabulous, unbelievable, incredible, ultimate body transformation!
"Listen, I tell you a mystery: We will not all sleep, but we will all be changed...in a flash, in the twinkling of an eye, at the last trumpet. For the trumpet will sound, the dead will be raised imperishable, and we will be changed" (I Corinthians 15:51-52).