Vortex of light

First of all, if you want to make light spin, you must constantly change the direction of light, and only the curvature of time and space can change the propagation of light. The curvature of space-time is caused by the mass of the object. The greater the mass of an object, the more serious the curvature of space. If you want to make light swirl, it is estimated that only a black hole can do it. But even if there is, you can't see it, because you can't see anything in the horizon of the black hole.