The Satya Yuga is called the Golden Age, because gold is very abundant in this age of utmost spirituality, and gold is the purest and most spiritual of all metals. The Illumination of predominant Sattwa pervades all Nature in this age. Nature, inside and out, is full of light, almost transparent with light—spiritual through and through. So is man, her best product. Men and women in this age attain a spiritual depth and height which no other age can develop. This spiritual height manifests itself In their physical body, while the depth of their inward spirituality shows itself in their outer life and actions. The Gulden Age men are twenty-one cubits, or thirty-one and a half feet, in height. This may strike us, diminutive mortals of this Kali Yuga or Iron Age, as absurd or improbable, but it need not do so if we remember how long ago the last Golden Age was—nearly three million years. Moreover, as they are all of the same height, they do not think they are abnormally tall. These men and women, owing to their high degree of spirituality, have a perfectly healthy, harmonious and beautiful body, for spirituality is health, harmony and beauty. They have their inner vision fully opened and see more through their ensouled mind's eyes than through their physical ones. They, therefore, see through Nature as through a glass. All Nature stands revealed to them to her inmost depth wherein they see the One Essence which pervades it, the One Spirit of which all things within and on the surface of Nature are but different phases of its manifestation. And in it all they find themselves as part of the same phases, living, moving and having their being sustained by that One Spirit which is both life and light—the One Omnipresent Spirit, the one All-Pervading Essence—Love.