We close our eyes when we pray and meditate because certain cultures/people (not all) believe that this helps us focus inward at the moment / close out all distraction. We close our eyes when we dream because dreaming occurs after we are asleep, when our eyes are already closed. We close our eyes when we kiss for two reasons. One is biologically it is a natural reflex for the body to close the eyes when anything (or anyone) is near the eyes as a measure of protection. The other reason is... hey, no one looks GOOD - THAT CLOSE! lol (laughing). What "communication" is, is defined by different cultures and by different people within those cultures - differently. There are many types of communication - but most communication can be categorized as either verbal or non-verbal. No one form of communication has any one "right" or better way of expressing... everyone is different and why we do what we do - those kinds of questions will/should result in probably as many answers as the number of people you ask.

Pray, dream, meditate, kiss? They are all times when people throw reason out the window. : )

Just make sure you know what you're kissing before you close your eyes. lol

Because we need our senses are at the peak of perception.

So you can concentrate on that moment.