Crystal by Elton John is a song imbued with themes of love, longing, and the ephemeral nature of treasured relationships. The lyrics paint a poetic picture of a profound emotional connection with someone who shines brightly in the narrator’s life, akin to a 'crystal'. Throughout the song, there's a sense of yearning and reminiscence, suggesting a love that is fragile and precious. Poignant moments in the song are highlighted by vivid metaphors and serene yet vulnerable expressions of affection and loss. The song can be seen as an ode to cherishing the beautiful yet fleeting moments of deep emotional intimacy.