If the vibratory nature of the manifest universe can be listened to, or if one could tune into it, then one could by intuition connect to certain repetitive frequency changes and constants.
Similar to the way scientists predict weather by systems of measure that relate to variables in air temp, pressure and humidity, psychic resonance can be tuned to sensitize ones self to the fluctuations in the vibrational changes in surrounding matter. It has currents of direction and fluctuations in desire and emotional content.
The I Ching is based on a Science of Universal cause and effect, change and its constants.
The school of thought is that intention and action create waves of vibrational frequencies that have an effect on surrounding structures of molecular design. In other words nothing happens by accident but rather everything happens by design and is a result of conscious choice.
Conscious in this case meaning intelligent forces, but not always are these forces conscious in the awareness of human sensory perception because the senses are often trained to perceive a more gross level of reality based on measuring devices that are created from gross levels of understanding.
There is a question that is posed over and over in the Yoga Vasishta: If a crow lands on a coconut tree and a coconut falls, did the crow dislodge the coconut from the tree or did the crow land at the exact moment when the coconut had ripened and in its predestined nature dislodge itself from the tree?
Spiritual sciences maintain that there is a relationship between consciousness or intelligence and the creation and maintenance of creation as well as change and destruction. In Eastern philosophy these forces are called the Gunas, Sattva, Tamas and Rajas. They are represented by the yin and the yang.

The symbol contains the darker area which represents Tamas guna or the forces of destruction. The lighter area represents Sattva guna, the forces of creation. Note that both have a small dot in the field of potential, a small amount of Tamas in Sattva and a small amount of Sattva in Tamas, this is because in duality or the field of the manifest there is always some of the opposite within the design of anything that is not an absolute. The circle and the line between the two fields of potential represents Rajas, the intelligent action or consciousness in activity, or God, or Love, the force of nature which bind creation and destruction together to create and support a manifestation of thought and desire. The circle around the forces represent the manifestation of thought into matter and the tension (the line between the two fields of potential) moves the two fields of potential into activity creating movement or change.
These gunas and fields of potential are also represented in the Aum/Amen symbol

The three gunas are the points to the left of what looks like a backwards E, where they meet to the right they create the manifest which flows outward and the line with the dot above represent consciousness or the seat of God in the absolute.
In Western spiritual sciences these forces are represented by the cross.

The vertical staff represents the male or stable presence of God in support of all things, the horizontal bar represents the feminine or the manifestation of creation, and the center where they meet the bindhu point where the absolute or the unmanifest potential meets conscious activity and the manifest.
Eastern and Western astrologers measure cosmic forces in the surrounding universe by using planetary alignment, constellations, place and time of birth for the predictions of the prevailing winds in an individuals path of evolution.
The I Ching taps into the prevailing winds of change with a method of spiritually and scientifically deduced methods of recognition to predict probable realities, based on repeatable recognized patterns within the manifest universe.