•wasn't it beautiful, when you believed in everything?• nostalgia [no-stal-juh, -jee-uh, nuh-] noun a wistful desire to return in thought or in fact to a former time in one's life or to one's family and friends; a sentimental yearning for the happiness of a former place or time: Youngjae's life has been a mess, but with Jaebum next to his side he could always get through anything.