All I know is that it is something that I dread with every fiber of my being, and we too believe in the Lord, and are ready for when we are called, spiritually. One question, is your husband on any morphine? A very small amount will not inhibit his breathing, but actually help him feel a little easier. It even works really well in a nebulizer. I try to think about what it will be like to be in our perfect bodies, with no aches, pains, diseases. I remember the excitement that I have had in the past for a new experience, or holiday in an exotic place, and then remind myself that where I or my husband will be going is so much better than that.
In my time dealing with the dying, I have had them close their eyes, and try to imagine the most beautiful place that they can. I sometimes describe beautiful places that I have been, on the top of a mountain in the brilliant sunshine with pillowy soft clouds below me. Watching the snow swirl in the wind and having the crystals reflect the sun so that it looks like a miniature sparkling whirlwind, and smelling the cool fresh air with a hint of evergreen. Lead him into beautiful thoughts, with a soft calming voice. I think you get the picture. God has given us so many amazingly beautiful things to see, and remember pointing to how much he loves us.
God bless you and I wish you both calming peace.
Paulette