When you see something there is nothing traveling between eye and the object you see. Eye takes වර්ණ ආරම්මන (arammana) as the object stays the same. This what the Abidhamma book explains about this situation.
Questions to Discuss:
What are Bootha-Parampara?
How can some one see the unseen?
How does “Divya Chakku” works in this context?