Pareidolia means seeing something in an object or thing which is actually not there. It just means the objects remind you of a different thing which is similar in shape of the object in front of you. You may come around many such objects in your day to day life which make you remember other things and bring a smile on your face. These are around 15 photos of some objects which make you think about very different things.
The scratch on the hand in the photo looks just like a Wi-Fi signal icon. If we see the scratch, we can be very sure about the signal strength of this Wi-Fi. Can you really use this Wi-Fi to connect to the internet?