What do you mean, autumn water is like a dream, and beginning of autumn season is endless?

Autumn water is like a dream, and endless thoughts in autumn are a poem. "Autumn water is like a dream without trace" describes that the water surface in autumn is as calm as a mirror, without ripples and blurred as a dream. The "non-trace" here not only means that there are no ripples on the water, but also implies that the passage of time has left no traces, implying the silence and bleak autumn. "beginning of autumn season is full of thoughts" expresses the poet's endless thoughts at this moment in beginning of autumn. Beginning of autumn is one of the 24 solar terms, marking the beginning of autumn. Poets use this festival to express their inner feelings.