idilio
In English, 'idilio' translates to 'idyll', which is typically used to describe an extremely happy, peaceful, or picturesque episode or scene, often an idealized or unsustainable one. This comes from the Greek word 'eidyllion' which speaks of a little picture and generally refers to a short poem with a romantic or sentimental mood. The term in both languages is commonly used in literature to depict scenes of simple, unspoiled joy or happiness.