Rustic Armchair Crafted Entirely from a Single Block of Oak

Create a rustic armchair crafted entirely from a single block of oak. Design it with asymmetrical shapes and deep grooves, resembling natural erosion by wind and water over time. Ensure the surface feels smooth, treated with a matte varnish to highlight the intricate wood grain. Situate the chair within a cozy room featuring stone-textured walls, illuminated by the warm amber light of a pendant above. Add a woven rug and a small stack of books on the floor nearby for ambiance.