Create a new document, perhaps 2000 x 2000 and set the color of the foreground to blue or red and then set the background to white (key) and then go to the filter menu and render and fibers command. Set the variance and strength as required but make certain you can see a fair amount of white in the strands. Set the randomize to a low value, too high and it basically becomes a grain effect. Set the strength too high and it is more like a line effect.
You can then go to the foreground and change the color to red or green etc and apply the effect again. Click the randomize (at the bottom of the panel) to run through a number of results. Click OK and then go to the edit menu and fade. Select the blending mode to darken or hard light etc but again the result needs to have a decent amount of white. This can be repeated a number of times but again, make certain you leave some white coming through in the final design
Go to the other menu and run the maximum. Set the radius to a low value (if it is too great, the result of the maximum will be just pure white). Set preserve to roundness. This will result in a lovely glowing effect with the previously generated image.
To smear the above effect, go to the stylize and oil paint. Set the stylization and cleanliness high and ignore the rest. Click OK to apply. Now you should have smeary effect with the linear design. You may like to apply the oil paint effect a few times, I find it is one of those that never seems to totally work with a single apply.
Personally, I then go to the image menu and adjustments and add some vibrance adjustment to the artwork and of course, you may decide the colors are not just right and go for another adjustment or adjustment layer and apply a gradient map or color LUT to the sparkly artwork.
Finish off with a final maximum filter (other menu). Set the roundness to a low value. Resulting in a nice colorful effect which can then be saved to the CC library for future use as a background, perhaps used with type and much more. You can also further modify it by using color lookup adjustments or if you want it as a texture then simply use the black and white adjustment and set the red and green etc as required to create an intense fibers design. Or use the camera raw filter to adjust the color even more.
Actually, sometimes the best and weirdest colorful designs can be generated by using the image menu and the adjustment and then invert and HDR toning or use the maximum again with a low setting. Great for all kinds of slimy looking designs as well. Also works well mixed with effects that add depth to the design. As with any work, there are many possible variations that can be applied to the glowing strands and the result itself can be then repeated and combined using blending modes perhaps with transformations and combined with gradients etc