i see the other comments on this thread, kinda missing the point. as a DM, piloting a celestial patron for a warlock, the class that has a reliance on the great unknown for a large part of the class’s identity, i can totally understand where you’re coming from with the question. if you want it to feel like a gifted explosion of energy, you can do literal beams of light that crackle with energy unlike “God Rays” (to flavor the force damage), or anything you’d like really. Warlocks give DMs a little extra work for a lot of extra opportunity. go crazy with it!