anxiety is evoked by the perception of a threat
Page 172 anxiety is evoked by the perception of a threat. In contrast of fear which is response to a specific, identifiable, and eminent danger, anxiety comes from the perception of potential and unpredictable threat, one that may pose a low probability of actual harm, or be vague or ambiguous, or not have a clear source.
— from The Instruments (Awareness/Perception/Expectations)
In the book
Consider what poor instruments cost you, hour by hour. Anxiety itself is not a response to danger but to the perception of a threat — adjust the reading and the feeling follows. Anger, we said, is just an expectation collision. — The Instruments (Awareness/Perception/Expectations)