One popular method of meditation and divination, is what is known as Scrying. It is usually performed with a mirror, or a bowl of water.
Here are some sites talking about the method of Scrying Let's Try It: Scrying
Water Scrying-
http://www.wyrdology.com/scrying/water.html
Mirror Scrying-
http://www.crystalinks.com/mirrorscrying.html But for practical purposes, this is my favorite method of mirror meditation- online meditation techniques Mirror-chanting