His heart was so light that he felt he could fly.

他的心情是如此的轻松，他觉得自己可以飞起来了。

youdao

As he ran down the street with a light heart to the bookshop, he saw a poor German family, the father, mother and three children walking in the cold wind.

当他轻松地沿街跑向书店时，他看到一个贫穷的德国家庭，有爸爸、妈妈和三个孩子，在寒风中走着。

youdao

I left the island with a light heart.

我怀着愉快的心情离开了那个小岛。

《牛津词典》

And the best thing about the ending, which casts the beginning in an eerie new light, is its heart-stopping romanticism.

WSJ: Brilliant Mind Games

Watch this space every week for an offbeat and memorable selection that might be light in tone, but never light-headed or lacking in heart.

FORBES: Beachside Bookworm: Extra Sun and Lazy Days Beg for Books

Organic polymers are a fundamentally new way of converting electricity to light, a process at the heart of all displays--TVs, computer monitors, cell phone screens.

FORBES: Seeing the Light