I have confronted an attacker in my imagination, not in reality. (Para.5)
Meaning: I have imagined an encounter with an attacker.
confront: vt. 1. face or meet an enemy, difficulty, etc.
People who confront their difficulties bravely are people who face their difficulties bravely and try to succeed despite them. 所謂勇于面對困難的人是指勇于面對困難并努力取得成功的人。
2. make someone face or consider someone or something unpleasant, difficult, etc.
The political official is confronted with much negative reaction from the people. 那位政客面對來自人民的反對很尷尬。
imagination: n. something that is caused only by your mind, and does not exist or did not happen in the physical world; only existing or happening in your mind, not in physical life想象力, 想象的事物
The artist is rich in imagination. 那位藝術家想象力很豐富。
in imagination: out of one's thinking or mind, not physical
in reality: real or true to the fact, the physical world
What he described exists only in imagination but not in reality. 他所描繪的只是想象，而不是現實。