human
Produce a detailed written description of a mystical scene outside a town courtyard with an oak tree and its burled trunk.
assistant
An immense oak tree dominates this area of the courtyard, its massive, all-encompassing branches creating a complex swirl of dappled shadows as sunlight pierces through. Faintly visible on the burled trunk, a creeping patch of velvety moss appears to be slowly making its way towards the treetop.