Masonic Symbols

What is the meaning of the symbols that one use for matters of instruction? Why do they embedded such a power significance normally misunderstood by the profane world? Vide, aude, tace is the instruction given to Entered Apprentices along the centuries. Why is so important to see, to listen and to touch before even formulating any judgement? And be silent through the process of learning?
Check the picture and make a charter of the symbols. They are 22.