Mysterious Alignment of the Orb Stripes

Photo date: June 30, 2017. Photographer: Mark Mahin.

The photo below (not a composite) shows two mysterious orbs I photographed indoors (the line is the line between a ceiling surface and a wall surface).  There are three astonishing features here:

(1) Both of the orbs have stripes with the same width.
(2) The two stripes both align with each other, being vertically parallel.
(3) There is an also a letter shape in the lower orb -- the shape of the letter N.

So far I have photographed inside mysterious orbs a letter N, 7 inverted Y shapes, 4 letter J shapes, 2 T-shapes, a U-shape, 2 letter M's, a number 13, and a number 7.  You can see some of these photos here, here and here.