Which word or phrase is a context clue that can you figure out the meaning of ecstatic in the story the duck and the smartphone

There are many words that can match ecstatic, basically anything that means happy because ecstatic is just very happy, so words like joy, excitement, happiness, joyful, many words that have similar meanings, but I would need the part of the story if I needed to directly point out signal words for ecstatic.

These words are spoken by Eliza, who is the person who is meant to be transformed in the play. In these lines, Eliza explains that the real meaning of a lady depends on how she is treated. She tells Higgings that she is only a lady because he treated her as one. She tells us that while the superficial skills can be easily learned by anyone, a women is not really a lady until she is respected by others.