This is the 1479th most frequent Spanish word.
reflejan
"They reflect."
Here, 'reflejan' is used to describe the action of the waters mirroring or showing the image of the blue sky.
Las aguas tranquilas reflejan el cielo azul.
The calm waters reflect the blue sky.
In this sentence, 'reflejan' conveys the idea of attitudes showing or embodying one's upbringing and values, metaphorically portraying characteristics.
Sus actitudes reflejan su educación y valores.
Their attitudes reflect their upbringing and values.
Here, 'reflejan' is utilized to indicate the function of mirrors showing or casting back the lights they receive.