One of the consequences that sin introduced in this world was give and take. In the old world before sin and the world to come, they did not have to, and you will not have to, give something up to receive anything. Sin introduced selfishness and it introduced the cost. Because of this sad reality for God to get you back to Himself, He had to give up His life to get ours. And that is the reality that we are in today. If you want the kingdom of Heaven, you must give up the kingdom of darkness and your kingdom. If you want God, you must give up yourself. If you want Love, you must be willing to put others first. Everything costs.