This candlestick base is mounted on a lathe, one of the essential tools that I use. What I am doing is called "turning", which, I suppose, could be understood as carving a rotating piece of wood. I am propping a tool on the top of the tool rest (the metal bar that extends out of the photo to the left) and holding the sharp end against the wood (obscured by my hand in this photo). There are many different tools, such as skews and gouges, which can be used to obtain different effects; the one I am using here is a 1/4" round-nose scraper.
The idea behind turning is to mount a piece of wood between “centers”, the “headstock” being on the left in the video and the “tailstock” on the right. The headstock turns the work via an electric motor.
I first have to turn off the rough edges and make the piece round, and then turn whatever curve I have in mind. After I am satisfied with the shape, then I apply sandpaper, starting with a coarse grit and proceeding to ever finer grits until the work is very smooth.