At the present day we have many methods of communication. Now we live in the age of information science, that is, we have personal computers, e-mail, electronic publishing and cell phones.
Communication methods have been convenient rapidly, and so we often tell our ideas or feelings to others, though we don't meet them. We can say that communication methods are very convenient now, but this situation is too functional and mechanical.
Maybe we can't tell our true mind to others. When we watch the others' eyes properly, we can tell our earnest mind to the others.
Proverbs say,“Watch with eyes, and say with a mouth”, “Eyes can say something as same as a mouth”, and “Eyes are the window of mind”.
Even if communication methods progress extremely, it is only swiftness. It is the best way of communication to watch eyes each other.