A troll in my head

And it is there. A thought. At first like many. Quite harmless. Then it circles. Like all other thoughts initially also revolve. But then it degenerate totally! I let it circle, as if there would be nothing. But I will catch it and ask where this idea wants to goal. And why it's there. As a servant of the thought, I try to decipher where is the sense of the thought and me.
Properties
Dimension:
≈ 30cm x 20cm
Technique:
Ink on paper
Year of Origin:
2013
Availability:
purchasable
Price:
Not Applicable