Travelling Light — because this is of relevance to the Gospel set for today in the lectionary

Today's reading was about Jesus calling his disciples — in John's gospel that call is "What are you looking for? ... Come and see."

This sets the theme for John's gospel, Jesus as light of the world. In this gospel, the cross is portrayed as glory, the light lifted high to be seen and to draw all people to himself. This in turn references various aspects of Greek thought (the Logos, the Monad, and the Platonic cave where people wait in darkness, no realising they are free to walk out into the light. You can see the resonance of that in the raising of Lazarus, which in John pairs with the Greeks coming to Philip, saying "Sir, we would see Jesus" — and so is triggered the decision by the temple authorities to put him to death.

But in today's story of the call of the disciples all that is yet to unfold. For now we see only the beginning of this theme of "seeing the light", as Jesus tells Nathaniel that he saw him long ago, sees the inner reality of his being — and thus Nathaniel sees Jesus for what he is, sees beyond cultural externals to spiritual reality. 

The reading referenced is John 20.3-8. It's given in this post.

The pictures referenced are also in that post, and are these: