Light:Type (2008) Manipulated digital photograph. Double fluorescent striplight with reflectors
Core Sample will visually resemble Light:Type (viewed from above). The two pieces are linked by the metaphor KNOWLEDGE IS LIGHT, as in ‘I see what you mean’.
SOUNDINGS 
And it dawned on her…
I’m in the dark on this one…
Plus the visual metaphors such as the cartoon graphic of a light bulb above a figure’s head to indicate sudden comprehension of an idea.
Or the halo