Answer:
This is in a realm of true and in a realm false, but you experience me as you turn and toss.
In we go, out we go. All around and in a row. Always, always steady flow. When we'll stop, you'll never known. In we go, out we go.
Something wholly unreal, yet seems real to I. Think my friend, tell me where does it lie?
At first I am a yellow weed in the lawn, and then the wind blows, and my white feathers are gone. What am I?
It is by nature, soft as silk; A puffy cloud, white as milk; Snow tops this tropical crop; The dirtiest part of a mop
What sphinxes employ and players enjoy.