Eternity in the presence of Christ - that is what we as Christians should feel confident in if we are walking in faith.
Science is unable to explain the things we believe by faith. One example is the fact that our bodies lose 21 grams at the time of death. Ruling out any loss of fluid or air, many wonder if it could actually be our soul. Paul tells us in 2 Corinthians 5:8 that to be absent from the body is to be present with the Lord. When our time on earth comes to an end, we will enter a new region - a new realm - Heaven. Jesus Christ gave His life for us and His spirit lives in our hearts as a pledge of the promise in John 14:3 that He will come again and receive us unto Himself.
There is a blessed future for each of us! Praise the Lord!