I saw a super bright light while digging field drains.

I was digging ditches for field drains with an excavator and when i looked up I saw a bright light just below the top of the trees. I thought it might have been a reflection but the sky was cloudy and it was too bright to be a reflection. I then looked away for about 5 seconds and then when I looked back it was gone. About half an hour later I was still able to see black dots due to how bright it was.
 Another strange occurrence that happened was that about a half hour before the bright light a big blue airplane flew really low but still above the trees. It flew close to where the bright light was.