I know you were told there would be no math, but sometimes the rules need to be broken. To start, we turn to wikipedia for a quick definition of a tesseract.
In geometry, the tesseract, also called an 8-cell or regular octachoron or cubic prism, is the four-dimensional analog of the cube. The tesseract is to the cube as the cube is to the square. Just as the surface of the cube consists of 6 square faces, the hypersurface of the tesseract consists of 8 cubical cells. The tesseract is one of the six convex regular 4-polytopes.
A generalization of the cube to dimensions greater than three is called a “hypercube”, “n-cube” or “measure polytope”. The tesseract is the four-dimensional hypercube, or 4-cube.
So, now that you know a tesseract is a geometry term, and not a way to travel through space and time, you can appreciate the time and effort -light- put in to this flesh stapling play.
Now normally flesh staples are a type of piercing, but seeing as how this play piercing was done with a stapler and ribbon, I’ll let it slide.