Glow effects work well on anything with dark backgrounds. They can be applied to imitate radiant light or other effects. Again, this effect can be achieved in many ways.
Create a document with a black background. Put some text onto the document.
Duplicate this layer and go to LAYER>>RASTERIZE>>LAYER to make it editable. Move the rasterized layer under the original text layer. Select the rasterized layer and go to BLUR>>GAUSSIAN BLUR. Set Radius to 5 and press "Ok". Duplicate the blurred layer to make it stronger.
Final Result