After Effects Cool Energy Tutorial.
In Depth Particle FX Tutorial
The lesson teaches basic After Effects techniques which includes: how to apply filter effects and masks, animate 3D particles and other transformations, use simple expressions, composition management, and every other step involved in the project above. As always, the lessons comes with all source files and afterwards you'll be able to make your own images come to life with energetic effects.
Plus this tutorial lends itself to plenty of experimentation on your own with these techniques.
The finished version is just one example of what can be done!