I find that the time that goes by is actually your best friend when you are making a record. The passing of time gives you perspective on what you recorded and what you wrote. If something sounds good to you 12 months after you recorded it then chances are pretty good that there's something valuable about the part or the song.
I remember when I was 5 or 6 years old, gospel music felt familiar, like I had heard it in the womb or something. A lot of those old gospel songs still give me that feeling, that it's older than time and there's actually music that can tap into a universal subconscious, or whatever word you want to put on it.
Try to take your vision and ego as far away from the song as possible. Give as much respect as you can to the song and the initial inspiration.