The first two steps are directly from my 'Abstract Boxes Tutorial'. This is an adaptation created by IndoSilver and me.
Step 1

Create a new image, and press D to set default colors. Fill in the background with black. Select the lens flare filter and create four lens flares in the corners like above.

Step 2

Select the wave filter, and use the above settings.

Step 3

Select the glowing edges filter and use the above settings.

Step 4

Press CTRL+U and use the above settings. Remember to check colorize!

Final Product

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