The I Ching, or Book of Changes, is the most widely read of the five Chinese Classics. The book was traditionally written by the legendary Chinese Emperor Fu Hsi (2953-2838 B.C.). It is possible that the I Ching originated from a prehistoric divination technique which dates back as far as 5000 B.C. Thus it may be the oldest text at this site.
An I Ching interpretation is performed by making six binary decisions (a hexagram). This is called 'casting the I Ching'. These are written down as a stack of six solid or broken lines. This was traditionally done either by tossing yarrow stalks or coins, although there is no reason why the hexagrams can't be generated by some other means (such as a computer program). (This text courtesy of sacred-texts.com
Spend some quite reflective time thinking of your question and then when you're ready, start your reading.