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Ariel: I will be correspondent to command, And do my spiriting gently.
— William Shakespeare · The Tempest

Behind the line May contain spoilers.
Our reading
An editorial interpretation.
The speaker promises to answer every command promptly and to carry out the work of a spirit with a light touch. It is a pledge of willing obedience, framed as service delivered gracefully rather than grudgingly or harshly.
Context reviewed