“The truths” could be hurtful words of brutal honesty they revealed to each other at the breakdown of the relationship. The relationship is over, but the pain of the words still linger.
June Carter Cash's voice
Was in my dreams
I was listening to a tape
That you made for me
When my heart got so tight
I thought I might die
We cannot return to Sundays down the street
That's okay, we're where we ought to be
But oh, how the time carried us by
While all the truths that we've told
Have gone silent or grown old
June Carter and John have flown
Soon I'll let you let me go
Still, June Carter Cash's
Voice haunts my dreams
Since listening to a tape
That you made for me
My heart stretched so tight
I thought I might die