This stained glass window shows Jesus as the Good Shepherd.
I have noted that we tend to walk into the temple on Jesus' left hand but we leave on Jesus' right. With his sheep.
"And before him shall be gathered all nations: and he shall separate them one from another, as a shepherd divideth his sheep from the goats: And he shall set the sheep on his right hand, but the goats on the left."
In His left hand he has a crook to prod the sheep. In His right hand he holds the sheep.
This window is in a sealing room. There is an identical window in the Celestial room.
Count the panels in that window. It is 9 high and 11 across. That is 99. What a unique number. Immediately, this calls to mind the Lord's parable of the lost sheep. "if a man have an hundred sheep, and one of them be gone astray, doth he not leave the ninety and nine, and goeth into the mountains, and seeketh that which is gone astray?"
I've heard it said that temple work is done one by one. We do not perform a baptism and read off a list of names. We do each ordinance one individual at a time.
The Celestial room is harder to count because of some of the furniture, but it is the same design.
Windows are a source of light. Of course windows do not generate light, but they transmit light. What a good symbol of ministering.
Depending on the circumstances sometimes windows allow light into the building and sometimes windows shine light from the building.