Lamp

Human eyes can adjust the light they perceive.

Therefore we are deceived.

...

Human eye can adapt to darkness.

Give it time, and you'll be able to see within darkness.

Some people do not realize this ability.

For instance, the lamp of the room.

Your lamp, after some time, is dim.

However, you still think it as shining brightly.

Then, what would happen if you take photo inside your room?

Therefore, you think about being in a well-lighted place.

But, actually, your eyes are just adapting.