For example here, the 24th June we make fires all over the place, we jump them at least 9 times ("to put demons away" they say) and we decorate our houses with certain plants. From what I know, this tradition has a Celtic origin.

(西班牙)比如说我们这里,6月24日时会在各家各处生上火,我们会跳过火焰至少9次(据他们说是“为了让恶魔退散”),我们还会用特定的植物来装饰房子。据我所知,这种传统源于凯尔特人。