Just Can't Capture The Inbetween

Inbetween
Door, portico, entrance
Ingress, egress
Dance
Entry, gateway
Shifting shadows
Exit

".....It's good to have shadows
That run when you run,
That laugh when you're happy
And hum when you hum -
For you only have shadows

When your life's filled with sun..."
( from Two little Shadows - Anonymous)