its like a white stone falling into a black sea and the sea turns soft and the stone disappears forever

The expression you mentioned, "it's like a white stone falling into a black sea and the sea turns soft and the stone disappears forever," appears to be a metaphorical description rather than a question. Metaphors are often used to convey complex ideas or emotions by comparing them to something else. In this particular metaphor, the white stone represents something pure or solid, while the black sea symbolizes darkness or uncertainty. The phrase suggests that when the white stone interacts with the black sea, it disappears completely, implying a loss or dissolution of something valuable.

Metaphors like these are subjective and open to interpretation, so different individuals may perceive them differently based on their own experiences and perspectives.