Definition
To experience hallucinations or to imagine things that are not actually present.
看到幻覺
I didn't sleep well last night, and I started to think I saw the walls moving; I must have been seeing things.
我昨晚沒睡好，開始覺得牆壁在動；我一定是在產生幻覺。
When I was walking alone on the dark road, I thought I saw someone following me, but I guess I was just seeing things.
當我獨自在黑暗的路上走時，以為有人在跟蹤我，但我想我只是在產生幻覺。
He has been under too much pressure at work lately and has started seeing strange visions; he should see a doctor to confirm if he's seeing things.
他最近工作壓力太大，開始看到奇怪的幻象；他應該去看醫生確認是否在產生幻覺。