Two thoughts fell into my mind just before Purim and then I saw a connection between them.
1. Hester panim is an illusion.
2. I was reading about the Norman oath of vassalage and wondered
whether there is any parallel in Judaism. We do not exactly place
our hands in G-d's and swear to be His from this day forward of life
and limb and unto Him to be true and faithful... do we?
The later thought that connected them is:
'Hester panim is an illusion': this is the message of Purim.
And our oath of vassalage is - Pesach.