三寸阳光
[sān cùn yáng guāng]
It's beautiful yet poetic, literally translating to 'three inches of sunshine'. Sun represents light, warmth, happiness, and all things nice, while three inches indicate the short distance to achieve. So it suggests that even a small amount of kindness, joy, or hope is extremely precious for everyone. People living in fast-paced society always look for these simple and pure moments.