罂栗花蛊惑人心
[yīng lì huā gŭ huò rén xīn]
Here, 'Poppy (a homophone with 罂栗 for some) flowers bewitch one’s mind'. It conveys the idea of being allured or intoxicated by something or someone just like poppies do with beauty but they are also related to addiction in metaphorical sense