Final answer:
The Nurse in 'Medea' establishes the play's themes, such as social injustice and personal morality. She provides a compassionate perspective on Medea's plight and her psychological torment, as well as acting as a concerned figure for the children's well-being.
Step-by-step explanation:
The Nurse's role in Euripides' play Medea is significant in terms of themes as she sets the stage by highlighting the societal injustices faced by Medea, such as being a foreign woman in a Greek society. The themes of the play, which include the struggle for survival under unjust human laws and the examination of personal morality versus societal norms, are all put into context by the Nurse's opening lament. She underscores the psychological torment that Medea endures, giving the audience a deeper understanding of Medea's motivations and the societal pressures that contribute to her tragic actions. As a witness to the unfolding drama, the Nurse offers a compassionate and concerned voice for the children's well-being, shedding light on the play's exploration of motherhood and the implications of Medea's choices.