Man’s centre of gravity is the heart. Under conditions of pain there is an intensification of consciousness and in shock man loses consciousness. Stability is centred in the heart and this centre is related to Gold. Gold harmonises and brings stability. (Steiner 2010:6)
How does the plant kingdom appear to normal consciousness? We see the verdant meadows pied with flowers growing out of the mineral Earth. We rejoice in the blue and gold, the red and white of the blossoms and in the living green. We delight in the beauty of the plant world spread out before us like a carpet. We are filled with joy and the heart leaps up as we behold the Earth clothed in this brilliant, multi-coloured garment of flowers and plants. (Steiner 2010:20)
Then we feel that everything that provides stability is centred in the cardiac region. And if we have developed our consciousness to the level already indicated, we then perceive that everything that sustains our ordinary waking consciousness, all that keeps it ‘normal,’ if I may  use this somewhat crude expression, is gold, aurum, which is finely distributed over the Earth and works with greater immediacy upon the heart than upon any other organ. (Steiner 2010:23-4)
All this is by no means as simple as it sounds. What I have described to you, what we experience when we follow the path of Initiation, namely, that consciousness is situated in the larynx, the base of the skull or the forehead, is an indication that all these various states of consciousness are permanently present in man. All of you sitting here have within you these states of consciousness, but you are not aware of it. Why is this so? Now man is a complex being. If, at the moment when you were conscious of the whole laryngeal organization, you could dispense with your brain and sense organs, you would never be free of this slight subconscious feeling of faintness. And in effect this is so; it is simply overlaid by the ordinary heart consciousness, the gold consciousness. It is common to all of you, it is part of your human make-up. A part of you that shares this consciousness is situated in the stars and does not exist on Earth at all. (Steiner 2010:24)
STEINER, Rudolf. 2010. True and false paths in spiritual investigation. (Trans.: A. H. Parker) London: Rudolf Steiner Press.