Clairaudience is perception of messages in thought forms from an entity who exists in another realm. You 'hear' what they are saying in in your mind.

Clairaudience is a form of channeling.

You may actually hear spirits talking or singing in your head but there is no auditory sounds.

Many of us receive messages in this manner from spirit guides, or other entities who have crossed over. Sometimes the message is preceded by a floral fragrance. this represents the Flower of Life - or creation.

Many of us become aware of spirit messages given in this manner - during times of crisis and they hear a warning in their mind.

When information comes through, there may be a pressure on top of the head (opening of the crown chakra), body sensation such as chills, tingles, hair standing on end, or other physical sensations.

Learning to listen to different entities is as much fun as learning to listen to different people. You can learn to distinguish their messages by their frequency signatures.