As the betrothal procession of Amina and Elvino approaches, the villagers all proclaiming joy for Amina, Lisa, the proprietress of the inn, comes outside expressing her misery: / "All is joy and merriment... I alone am miserable". She is consumed with jealousy for she had once been betrothed to Elvino and had been abandoned by him in favour of Amina. The lovelorn Alessio arrives, but she rejects his advances. All assembled proclaim the beauty of Amina: / "In Switzerland there is no flower sweeter, dearer than Amina". Then Amina comes out of the mill with her foster-mother, Teresa. She is the owner of the mill and had adopted Amina many years before. Amina thanks her, also expressing her thanks to her assembled friends for their kind wishes. (Aria: / "How brightly this day dawned for me".) Additionally, she thanks Alessio, who tells her that he has composed the wedding song and organised the celebrations; she wishes him well in his courtship of Lisa, but Lisa cynically rejects the idea of love. Elvino arrives, exclaiming / "Forgive me my beloved", and explaining that he had to stop on his way at his mother's grave to ask her blessing on Amina. As they exchange vows, the notary asks what she brings to the partnership: "Only my heart" she answers at which Elvino's exclaims: "Ah the heart is everything!". (Elvino's aria, then Amina, then all express their love and their joy: / "Here, receive this ring that the beloved spirit who smiled upon our love wore at the altar".)