from/about The Nabataean Agriculture by Ibn Wahshiyya
At times, the stories conceal a hidden inner meaning, as in a text purporting that the eggplant will disappear for 3000 years. The author explains that this is a symbolic expression in which the 3000 years signify three months, during which eating eggplant would be unhealthy.
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They say, for example, that a farmer woke up on a moonlit night and started singing, accompanying himself on the lute. Then a big watermelon spoke to him: “You there, you and other cultivators of watermelons strive for the watermelons to be big and sweet and you tire yourselves in all different ways, yet it would be enough for you to play wind instruments and drums and sing in our midst. We are gladdened by this and we become cheerful so that our taste becomes sweet and no diseases infect us.”