It has very little freedom of movement. If I apply heat to this chunk of ice it will melt and become water. Then it can spread out and flow. Water undoubtedly has more freedom of locomotion than ice, Now let me heat up the water until all of it is transformed into water vapor. So also is mind.
Ordinary mind is like ice or water.
Due to its limitations it cannot have super-conscious experience. On the other hand, the pure mind is like water vapor. It is free of limitations and is capable of having super-conscious experience, or Samadhi. Before the well-known French psychologists Charcot and Janet recognized the existence of the subconscious state of mind the west was interested only in the conscious state of mind. Later Freud, Jung and others concluded that the larger portion of the mind is like the submerged portion of an iceberg.