The yin-yang is a symbol popular in Eastern philosophy. It deals with the harmony or balance that can be achieved in duality. For instance, light cannot exist without dark, day without night, men without women, etc.
I just wanna upcycle some wooden pallets and call it a bed, yknow? Love this,cheap,easy n recycling . It will eliminate need for box spring n bed frame. I just got 10 wooden pallets does couple of nefty projects n this is on my list for my guest room :-)