weep, cry, shine, glisten
泫 centers on the visible effect of water: tears that weep or cry, and surfaces that shine or glisten with moisture.
泫 combines 氵 (water) with 玄, which likely contributes the sound. The water component suggests the meanings related to tears and shining moisture.
Water 氵 beside 玄: imagine dark, mysterious water that glistens as it flows, like tears weeping down a face.
For ケン, picture Ken shedding a tear: Ken -> ケン, and his tear glistens like the water radical 氵.
alone