Across cultures, hermaphrodite figures like Ardhanarishvara have traditionally been associated with fertility and abundant growth. In this form, Shiva in his eternal embrace with Prakriti represents the eternal reproductive power of Nature, whom he regenerates after she loses her fertility. "It is a duality in unity, the underlying principle being a sexual dualism". Art historian Sivaramamurti calls it "a unique connection of the closely knit ideal of man and woman rising above the craving of the flesh and serving as a symbol of hospitality and parenthood". The dual unity of Ardhanarishvara is considered "a model of conjugal inseparability". Padma Upadhyaya comments, "The idea of ... Ardhanārīśvara is to locate the man in the woman as also the woman in the man and to create perfect homogeneity in domestic affairs".