Actually, Vivian Chu’s Puzzle Chair composed of numerous small chairs ‘nestled’ within each other, it was done in a clear allusion to the concept of dreams within a dream. 
Basically consisting of 10 chair frames that fit into one another via hand-cut grooves (cut out of inner edges), pegs on the outer end of each frame easily conform to the indentation of the previous smaller sized chair. And with the whole fitting mechanism, it creates a unique effect of a multi-pillared hallway from all angular visual perspectives of the chair.
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