The I Ching also known as the Classic of Changes, App of Changes and Zhouyi, is one of the oldest of the Chinese classic texts. The book contains a divination system comparable to Western geomancy or the West African Ifá system; in Western cultures and modern East Asia, it is still widely used for this purpose.
 
The I Ching uses a type of divination called cleromancy, which produces apparently random numbers. Four numbers, 6 through 9, are turned into a hexagram, which can then be looked up in the I Ching App, arranged in an order known as the King Wen sequence. The interpretation of the readings found in the I Ching is a matter of centuries of debate, and many commentators have used the book symbolically.
 
The I Ching is one of the world’s oldest divination texts, with some claims putting it over 3,000 years old The I Ching, of Changes, is an oracle even, that has helped millions by providing advice and guidance to life’s questions, both complex and basic.
 
There are multiple ways to consult the I Ching. One of the earliest methods utilizes sorting and counting yarrow sticks, but as time has gone on other ways have evolved.

The most common method now has become coin-tossing, perhaps because 50 yarrow sticks are harder to come by, possibly because the coin-tossing method is faster — either way, the mode by which one consults the I Ching is not as important as the mindset that one has while they are consulting.