Shades Of White

This incident happened about 1 month ago. It had been a long day and I was about to fix supper for my wife and I. She was in the bedroom folding clothes and I walked into the kitchen.

We live in a "open environment" apartment. This means the counter with the sink runs between the kitchen and living area. Since it is only a counter I can see all the way to the front of the apartment and out to the outside. I was standing there thinking about what to fix and I noticed something white behind me. I turned and could only see the cabinets and refrigerator. Now the cabinets are a dark wood and the frig is black so there is nothing white there. I turned back to the sink and again I saw the white behind me through the front window. Outside it is night and dark and there are no lights so the white I saw was definitely inside. I focused my eyes and looked closer and began to see two distinct figures of white. I thought at first that they were wearing white robes but the more I looked I realized they themselves were the white color. They were moving back and forth like curtains in the wind, but the windows were closed and also we have no curtains on them, just open blinds. I noticed one of them was a little shorter than the other and then I saw that the shorter one was holding an orange orb about the size of a basketball. The orb was glowing and when I looked behind me there was nothing there. I again turned back to the sink and looked to see the shorter one dropping down like it was kneeling. Then it rose again. I swayed back and forth and they seemed to follow my movements. I raised my arms to see if they would but my wife came into the room and asked what I was doing. I looked and they were gone.

I felt strong, cold air when they were there then the room warmed up when they were gone.

I just told my wife I was stretching.

I keep looking for them to reappear but I have not seen them since.

I would like to know who or what they were. And what was the orange orb?