It's about how within your own mind you can do anything, but that in reality it's not quite so easy. With eyes closed, while escaping into the realm of imagination you can talk to strangers, walk on water, whatever. However, the song cautions: "We close our eyes, but time's slipping away". You have to make use of time and achieve what you can in the real world, while accepting your shortcomings and not spending too many hours dreaming about what you could have been.
It's about how within your own mind you can do anything, but that in reality it's not quite so easy. With eyes closed, while escaping into the realm of imagination you can talk to strangers, walk on water, whatever. However, the song cautions: "We close our eyes, but time's slipping away". You have to make use of time and achieve what you can in the real world, while accepting your shortcomings and not spending too many hours dreaming about what you could have been.