Here are the chords as I play it. Its really easy, I used it to teach myself guitar. Its also been one of my favorite songs for most of my life.

C                      Dm
You might wake up some morning
       G7                                  C
To the sound of something moving past your window in the wind,
             Dm             G7
And if you're quick enough to rise
                Dm                   G7               C
You'll catch the fleeting glimpse of someone's fading shadow.
                Dm
Out on the new horizon
         G7                         C
You may see the floating motion of a distant pair of wings,
            Dm                G7
And if the sleep has left your ears
               Dm                G7               C
You might hear footsteps running through an open meadow.


Chorus:
C          Dm          G7       C
Don't be concerned, it will not harm you
         G7                            C
Its only me pursuing something I'm not sure of,
          Dm          G7       C
Across my dreams, with nets of wonder,
            G7                         C
I chase the bright elusive butterfly of love.


C                      Dm
You might have heard my footsteps
      G7                               C
Echo softly in the distance through the canyons of your mind.
             Dm               G7
I might have even called your name
          Dm             G7                  C
As I ran searching after something to believe in.
                      Dm
You might have seen me running
            G7                           C
Through the long abandoned ruins of the dreams you left behind,
          Dm               G7
If you remember something there
            Dm                G7                   C
That glided past you followed close by heavy breathing.


Chorus
Repeat last two lines of chorus twice to end.

Enjoy! I'm glad people still sing this, its 40 years old and timeless. Its a wonderful song.