The pounding of the plant in a stone mortar, and the preparation from it of the offering to the waters, forms a major part of the yasna ritual; and a concept developed from this ritual of the ‘green-eyed’ god Haoma, the divine priest, who was also invoked as a healer, and one who could protect cattle, give strength to fighting men, and ward off drought and famine.
(Mary Boyce, Zoroastrians, ch. 1)
Twenty years ago, National Geographic published their famous photo of a a young Afghani woman with fierce bright-yellow eyes; in 2001, the same woman was identified in Afghanistan—although her face was changed, worn out by her difficult life and heavy work, her intense eyes were immediately recognizable as the factor of continuity.
(Slavoj Žižek, The Puppet and the Dwarf, Appendix)