“ ... the language of the unconscious and the power of the unconscious is most directly evoked by the deliberate practice of imagery and visualization skills.  
This communication works both ways:
If images are the messengers dispatched from the deeper mind to carry inspirations to surface awareness,
then images are also the form in which messages can be transmitted from the conscious mind
to deeper parts of the unconscious.  
Imagery, it seems is the ‘language’
of our unconscious idea processor.”

~Willis Harman and Howard Rheingold