I could be way off base, but I think it explains Mark's desire to stay in the background a bit and given his health of late, be part of an ensemble rather than the focus of a band... "Holy Moly where did the time go?" says it all to me...
It makes sense, but in a way where Mark's desire to stay in the background is only occasionally.
I like to split the lyrics in 3 parts:
1st is at the start of the rehearsals;
2nd is the fine tuning, improvements and recording;
and 3rd is the live performing.