真的在燒
這一支就是核心畫面本身，沒有任何比喻。
adjective · B2
Burning with a lot of strong flames. It is used about big things that catch fire, such as a house, a car, a field or a shop, and it normally comes after a verb like be or set, not in front of the noun.
熊熊燃燒
核心畫面
You can picture ablaze as one thing wrapped in fire from end to end. Not a corner catching, not a single small flame, but the whole surface giving off light and heat at once, so that anyone looking from a distance sees it glowing. Everything the word does grows out of that one wide, burning picture: first real fire, then anything that looks like it, then anything that feels like it.
「ablaze」可以想成一個東西整個被火光罩住的樣子。不是角落燒起來一點，也不是一朵小火苗。是整片表面同時發光發熱，…更多收起
「ablaze」可以想成一個東西整個被火光罩住的樣子。不是角落燒起來一點，也不是一朵小火苗。是整片表面同時發光發熱，遠遠看過去就是一團亮。這個字的每一種用法，都可以想成從這張畫面長出來：先是真的在燒，再來是看起來像在燒，最後是感覺起來像在燒。From the word’s history
Wiktionary analyses ablaze as a- (on, in) + blaze (flame), literally in flame. That matches the way the word behaves today: it names a state something is in, so it sits after be or set rather than in front of a noun.
Wiktionary 把 ablaze 拆成 a-（在…之中）加上 blaze（火焰），字面就是「在火焰裡」。這和它今天的行為對得上：它講的是一個東西「處在什麼狀態」，所以放在 be、set 後面，而不是放在名詞前面。
Wiktionary entry for ablaze, kaikki extract kaikki:3f6f69a190036ae4:11897538:20393 (etymology: a- + blaze)
Three branches
看起來像在燒：光和顏色
火最搶眼的就是那片亮。把「燒」拿掉、只留下「亮」，就走到這一支。
adjective · C1
Full of bright light or strong colour, so that a place looks as if it is glowing like fire. It often appears as ablaze with, followed by the lights, flowers or colours that fill the place.
光彩耀眼
感覺起來像在燒：情緒
同一團火從外面搬到人身上，燒的變成情緒。
adjective · C1
Showing very strong feeling, most often anger, but also excitement or strong wanting. It is usually said about a person's eyes or face, in the pattern ablaze with plus the feeling.
（情緒）熊熊燃燒