In Reply to: lanterns first saw them posted by oliviachouchou on Wednesday, 20. October 2010 at 20:52 Bali Time:
Google
Yi Peng
and
Loi Krathong
They're two lantern festivals held on dates according to the Thai lunar calendar - usually in October and/or November.
I leave you to discover the online meanings and images for the two festivals, it's quite beautiful.