Drag the Flame Base group onto it in the Project view.
If you make any changes to the particle systems, be sure to update the prefab by clicking Apply at the top of the
Inspector in the Prefab line.
Welding Sparks:
In the next section, you will be making a laser beam. When it hits action objects, it will instantiate a particle
system of a short burst of sparks. Let’s go ahead and create it now. Be sure to click Simulate in the Particle Effect dialog
in the Scene view as you fill in the values, so you can see the immediate result.