Because we are different from animals, we want to know where we are going when we die. Life on earth is very short. The only One who can give us the answers is God, Who created us. The answers are found in His Book, the Bible. In the Bible, God has told us who we are, why we are here on earth, and where we will go when we die.
Animals have physical bodies only.
But every person has a spirit within his body. But the spiritual part of man will continue to live. Life on earth is very short. Death will soon come to each one of us. Therefore, we are not wise if we live only to satisfy the needs of our bodies.