Why are you not dead? The medical explanation entails a beating heart, functioning lungs, etc., but we know from Acts 17:25 that God gives us "life and breath". So, seeing as our life is in the hands of God, why are you not dead? The clear answer is that God does not want you to die yet, which leads to the question of why?

Jeremiah 29:11   For I know the thoughts that I think toward you, saith the LORD, thoughts of peace, and not of evil, to give you an expected end.

Psalms 138:8   The LORD will perfect that which concerneth me: thy mercy, O LORD, endureth for ever: forsake not the works of thine own hands.

God has something for you to do!