For All We Know lyrics

Love, look at the two of us,
Strangers, in many ways,
Weve got a lifetime to share,
So much to say,
And, as we go, from day to day,
Ill feel you close to me,
But, time alone will tell,
Lets take a lifetime to say,
I knew you well!
For only time will tell us so,
And love may grow,
For all we know!

Submitted by Guest

What do you think is the meaning of For All We Know by Perry Como?