What is the meaning of phrase The lake was a sheet polished glass?

The phrase "The lake was a sheet of polished glass" is a simile that uses imagery to describe the lake's appearance.

Here's what it means:

* "Sheet": This refers to the flat, smooth surface of the lake.

* "Polished glass": This refers to the extreme smoothness and reflectivity of the lake's surface. It implies that the water is so calm and still that it reflects the surrounding environment like a mirror.

Overall, the phrase suggests a scene of perfect tranquility and stillness. The lake's surface is so smooth and reflective that it resembles a sheet of polished glass.

This type of description is often used in writing to evoke a sense of peace, serenity, or beauty.