We have spent billions to go to the moon - we go to this lesser satellite called the moon and say we are in space, but we are in space right now; we just don't feel ourselves to be in space. Some forms of art and some forms of spirituality do give us that sense.
In a way, light unites the spiritual world and the ephemeral, physical world. People frequently talk about spiritual experiences using the vocabulary of light: Saul on the road to Damascus, near-death experiences, samadhi or the light-filled void of Buddhist enlightenment.
There's traditionally been a large disconnection in contemporary art between the audience and the artist. Generally, audiences are looking towards what they like, and I can tell you, that's the last thing on an artist's mind.