The sound of laughter is like the vaulted dome of a temple of happiness.

The image likens laughter to sacred architecture: something resonant, enclosing, and communal, as if joy could be entered and inhabited like a temple. By invoking a “vaulted dome,” the line emphasizes acoustics and amplification—laughter doesn’t merely express happiness; it creates a space that gathers people under a shared emotional canopy. The metaphor also hints at reverence and ritual: laughter becomes a kind of secular worship, elevating ordinary pleasure into an experience with grandeur and transcendence. At the same time, the comparison can carry an ironic edge typical of Kundera, suggesting how easily happiness can be aestheticized or idealized into an almost religious ideal.