I agree that intimacy truly safeguards a marriage against common problems. When both party show intimacy with each other then I guess everything will run smoothly, every issues can be discussed easily.
I see this is your first post, so welcome. There is a similar thread just started in "General Discussions". I think that failure to put God first is the single biggest problem in Christian marriages today. It's a shame and a disgrace that Christian marriages fail at about the same rate as the lost.