将以下这首诗的前两句翻译成英文，并解释一下它的意义。


静夜思
床前明月光
疑是地上霜
The first two lines of this poem are:

"Beside my bed, a pool of light—
Is it hoarfrost on the ground?"

The poet is looking at the moonlight outside their window and sees a bright pool of light on the floor beside their bed. They are unsure if the light is caused by moonlight reflecting off the ground, or if it is actually a thin layer of frost. The overall meaning of the poem is to evoke a sense of calm and contemplation, as the poet reflects on the stillness of the night and the beauty of the natural world.