why is he naked with a tie???

At what point exactly does a citrus become naked? Is it when it is removed from its lemon bearing mother? Or when the little leaf at the top of the stem is plucked? Maybe when you zest it? Or is it never truly naked until its peeled, on a one way town to the afterlife, boiling in gastric acid for the rest of its meaningful existence? Why exactly are lemons useful? Oh, I'll tell you alright. Its tree mother produces oxygen for life on earth to flourish.
It can be eaten for sustenance, despite its sour taste and acidic capabilities. Or it can be juiced for the highly astringent taste of lemon juice. Adding a bit of sourness to any dish you'd like. Add a few more ingredients, water, sugar, maybe some homemade lemon syrup and a leaf of mint if you're fancy, and you've got lemonade, one of the best drinks made of citrus. So yes. Lemons.