I KNEW there was another song with "love one another" as a key lyric and same spiritual nature...one of my favorites:
Love Is the Answer
Song by England Dan & John Ford Coley ‧ (1979)
https://blossom.primal.net/89e9e72105a1ec8edc67aa1c4c9e81d74757690105a8024fbff39057f870efca.mp4
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A ticket to paradise
I can't stay here any more
And I've looked high and low
I've been from shore to shore to shore
If there's a short cut I'd have found it
But there is no easy way around it
Light of the world, shine on me
Love is the answer
Shine on us all
Set us free
Love is the answer
Who knows why
Someday we all must die
We're all homeless boys and girls
And we are never heard
It's such a lonely world
People turn their heads
And walk on by
Tell me is it worth just another try
Light of the world, shine on me
Love is the answer
Shine on us all
Set us free
Love is the answer
Are we alive
Or just a dying planet
What are the chances
Ask the man in your heart for the answers
And when you feel afraid
Love one another
When you've lost your way
Love one another
And when you're all alone
Love one another
And when you're far from home
Love one another
And when you're down and out
Love one another
And when your hopes run out
Love one another
And when you need a friend
Love one another
We got to love one another
Light of the world, shine on me
Love is the answer
Shine on us all
Set us free
Love is the answer
Light of the world, shine on me
Love is the answer
Shine on us all
Set us free
Love is the answer
Light of the world, shine on me
Love is the answer
Shine on us all
Set us free
Love is the answer
Light of the world, shine on me
Love is the answer
Shine on us all
Set us free
Love is the answer
Source: Musixmatch
Songwriters: John Wilcox / Roger Powell / Kasim Sulton / Todd Harry Rundgren