For example:
After failing both my exams, going to see my mum has provided a ray of sunshine.
It's been a really terrible few days, but he's been like a ray of sunshine to me.
The new client provided a ray of sunshine for Steve's business on Monday.
It's been a really terrible few days, but he's been like a ray of sunshine to me.
The new client provided a ray of sunshine for Steve's business on Monday.
Don't confuse it with
The phrase “everything under the sun', which means we have tried every way we can, or is used to talk about large number of things.
For example:
Have tried everything under the sun to remove the dirt.
You can talk everything under the sun with me.
You can talk everything under the sun with me.
We just had a 2-day trip in Da Nang, but my wife brought everything under the sun with her in case no local stores could be found.
Interesting fact
The existence of nearly all life on Earth is thanks to the rays of light emitted by the sun. The sun's rays, in moderation, are beneficial to the human body, which produces vitamin D. A lack of sunlight, however, can sometimes lead to a condition known as seasonal affective disorder (SAD), a mood illness which can lead to depression.

