When rickshaw started , after some time “dust" started to get in “eyes" and their reactions are interesting:

• Child starting crying “mama! Theirs dirt in my eyes”
• Adult man silently rubbed his eyes like nothing bothered by it.
• But old man didn't do anything because he had “closed his eyes" before rickshaw started.

Here eyes giving us 3 life lessons:

1. As you become old , your open eyes will start folding & eventually shut down.

The eyes that were “full of hope" at start ,with course of time start losing "trust" & gaining “experience" as the time passes.

2) The eyes becomes “Muddy” which were "clean” once.

The pure heart full of “helping nature" start not believing & helping others.

3) The gain of “dirt" aka "experience”.