This technique is a very ancient one, and common among Shamanistic Traditions. Divination is the ability to see what patterns are forming towards manifestation. What you “see” is actually what is likely to occur if nothing changes the pattern being “woven”. Here is one technique which is taught:
Pour some bottled water into a cereal bowl.
Mix either a blue or a green food color into the water, so that the liquid is dark enough to hide the bottom of the bowl. At this point you have a reflective surface. Place two candles as your source of light, so that the light does not reflect upon the liquid (off a foot or two, in front of you should do it).
Next is a series of hand passes over the liquid, slowly and deliberately. Magically speaking, the right hand is of an electrical nature/active charge, and the left hand is of a magnetic/receptive charge. Right handed pass will strengthen the image and left handed passes will attract the image to form.
Begin by making left handed passes over the bowl, in a clockwise circle, just a few inches above the water (palms open and facing down).
Stop, and gaze into the dark liquid, not At the liquid, but INTO the liquid. You will need to repeat these passes as you go, from time to time. Alternate between the left hand and the right hand. This requires patience, and time. Use your intuition as you sit before the bowl.
Make sure the area is quiet and there are no distractions.
Drinking some Rosemary tea, prior to Divination, can aid in the work. There are several herbs which aid the Psychic Mind, this is just one of them (careful though, Rosemary can be toxic in large quantities).