#tranquility

• Lull — A temporary period of calm, relaxation, or inactivity that suddenly occurs during an agitated, violent, or tumultuous event. In meteorology, it designates the temporary cessation of wind, storm, or the subsiding of sea agitation. Figuratively, the term refers to a lull, pause, or a moment of harmony occurring in the midst of social conflicts, political crises, psychological agitation, or the febrile manifestations of an illness.
• Halcyon — A poetic or mythological designation given to the kingfisher bird or to a legendary seabird that, according to ancient Greek myths, built its nest on sea waves during the winter solstice, with the god Aeolus calming the winds to protect its eggs (halcyon days). It symbolizes peace, tranquility, serenity, and deep natural harmony.
• Halcyon — Pertaining to the halcyon bird or to the days around the winter solstice when the sea becomes unusually calm; calm, serene, peaceful. In a figurative and literary sense, the term describes a period of absolute tranquility, carefree happiness, or a completely undisturbed atmospheric and spiritual climate.