Metaphor

Sunny

Sunny smile

children’s sunny faces
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face shines with pleasure and
eyes shine with excitement or delight

If someone’s face lights up or their eyes light up, they show that they
suddenly feel happy

If an atmosphere lightens or a mood lightens, it becomes more relaxed or
cheerful than it was.

Dark thoughts

dark days or dark times are unpleasant times to live through
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If someone’s face
darkens or their eyes darken or someone’s expression darkens, then we know that that person is
unhappy, often because they are feeling angry.

Heat
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A heated debate, a heated
discussion or a heated conversation is one in which people disagree in an angry way with each
other

If you say that someone has a fiery temper, you mean that they often get suddenly angry.

Flare = show a bright light in the dark
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If you say tempers flared, you mean that
people became angry with each other. Similarly violence flares up and troubles flare up
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If you feel very embarrassed, your cheeks
burn with embarrassment

A blaze is a very bright fire.

blaze of glory
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