Final answer:
Prospero's mood in his speech is nostalgic and melancholic, as he reflects on the transient nature of life and the end of his magical powers.
Step-by-step explanation:
Prospero's mood in his speech beginning 'Our revels now are ended' can be described as Nostalgic and melancholic. In the speech, Prospero reflects on the transient nature of life and the fleetingness of his magical powers. He expresses a sense of sadness and longing for the past, as he acknowledges that his time as a magician is coming to an end.
For example, Prospero refers to himself as 'a poor, bare, forked animal' and describes his magic as 'such stuff as dreams are made on.' These lines suggest a certain wistfulness and a recognition that his power and accomplishments are ephemeral.