This was taken shortly after arriving at Southern Cross Station.

This image shows people departing from a tram.

As you can see, the motion that they make with their legs suggests movement in a direction through the medium of walking.

Some of these people are using the medium in order to retreat from the interior of their captor, whereas others are using the medium to retreat into the interior of their soon-to-be captor.

A simply scene of street photography, I guess.

I hope you enjoy.