"Halcyon Days" refers to a period of calm and tranquility, often associated with peaceful times in one's life. The term originates from the ancient Greek myth of the halcyon, a bird believed to calm the seas during its nesting period. This serene time typically occurs in late winter, symbolizing hope and renewal. In modern usage, "Halcyon Days" can describe any phase characterized by happiness and contentment. People often reflect on their own halcyon days as moments of joy, simplicity, and stability, whether in childhood, a relationship, or a specific time in history. The phrase evokes nostalgia and a longing for peaceful times.