The lyrics you are referring to are from the song "Harvest Moon" by Neil Young. Here are the opening lines:
Come a little bit closer
Hear what I have to say
Just like children sleeping
We could dream this night away
But there's a full moon rising
Let's go dancing in the light
We know where the music's playing
Let's go out and feel the night
The chorus continues:
Because I'm still in love with you
I want to see you dance again
Because I'm still in love with you
On this harvest moon
The song expresses a romantic and nostalgic mood, celebrating love under the light of a full harvest moon
