泡 means 'bubble'

Buddhist views of impermanence once influenced words for "fragile life," words that include 浮. Later, a fear of death inspired living hedonistically in the "floating world"; related terms again feature 浮 (as "transient"). Because bubbles vanish without a trace, 泡 figures into words for "short-lived company" and "fringe candidate" (one who quickly disappears). Dreams (夢) slip away every day, and several words for "fleeting" combine 泡 and 夢. Similarly, dew evaporates, and one famous poem likens the poet's vanishing life to dew (露) and compares his world to a dream (夢).