Everything is consciousness and consciousness manifests vibrational waveforms that form complex constructs. What we experience in “normal” life is the construct of complex vibrational waveforms appearing as solid objects. Slightly stretching the definition of light you could say that everything in “normal” life is constructed from light.
David Bartlett in his new book “The Physics of Miracles” says “All situations in life are merely patterns of light and information. If you want to change anything in your life, change the frequency, density, or quality of the light patterns that make up that reality. Let go of all doubt and do this with a feeling of certainty.”