lighting in interior raytrace

[MAINEWOOD59]

I added a light source to the raytrace, but do not want it to show on the ceiling?

[TheKitchenAbode]

Try to lower it's height, I usually place the 3D lights about 60% from the floor to the ceiling. Also, you will likely have to reduce it's intensity. It's difficult to achieve using only one single light, just place a few throughout the scene at lower intensity.