The seat of understanding; the rational or thinking part of you; consciousness; wisdom; memories. Is there a waking situation in which you are heading in the wrong direction; have or need to keep your head above water; need to head off trouble? Consider any special decoration to the head or face, or special coverings for the head, for additional clues.
In Eastern philosophy and metaphysical or esoteric tradition, the head is related to the ajna(third eye) and crown chakras (energy centers) and to the inner cave, all of which are crucial in gaining spiritual insight and refer to a quite different kind of thinking.
See body, cave, face.