What if you died tonight? Talk about a change. Death changes everything. Of course the believer in Christ has the assurance of his salvation and his born-again spirit which helps in the transition I am sure. Still, what a shock to the system.
Because our deaths, the Christians, are precious to God, (Ps. 116:15), I know He will be present, in the Person of Christ, at that time and make our change as easy as possible. Not only in reference to the change, but in reference also to our loss of those we leave behind. When we were young we grieved over those who left us in death. When we get old, and see death coming, we become aware we are going to leave others behind, and grieve over that.
It is my opinion that the more 'spiritual' the believer is here and now, the easier the death experience will be. One may be saved, but is not walking in the Spirit. Maybe even in rebellion against God. I think the transition for them will be difficult, no matter how briefly it will last. But, if the believer is walking in the Spirit, he is tuned in to the things of the Spirit, so that moving into that world of the Spirit is not foreign. But if the believer has been only walking in the flesh, then there will be some struggle, I believe.
It doesn't matter how young or old one is. Every day your body is dying. We as believers must let it die, learn to live the crucified life, having your spirit rule and not the body. (Gal. 2:20) Not only is that profitable for us now, but it will be of great value on that day.
Quantrill