Do you sometimes wonder if you are fit for heaven? It has been said that the faith of a Christian goes through growth and development and somtimes doubt becomes a problem. When we look at ourselves, doubt will creep in and screwtape will be there to fuel your doubts (no doubts about it). Our human and carnal mind resists or find it boggling that we can live in the presence of Almighty God, the Creator and Lord of the Universe. This is sometimes too marvelous to believe.
However, when we look at what Jesus has done, when we look at the atonement, and consider that at the cross, God was in Christ reconciling the world to himself, we will not be surprized. No I do not think so. The atonement makes people fit for heaven not because there is anything in ourselves that makes us appropriate to live there, but because it is Jesus' work that makes us fit to live there. His sacrifice makes you ready. You are fit, on account of Christ's work, not yours.
When we are tempted to look inside us to find if there is anything in us that makes us ready, we should immediately agree that we are not, but at the same time in haste look away from ourselves and look outside us, look to the one who did it all - Christ Jesus the Lord, God's Son.
I encourage you on this and remind me of this too.