Happy Thanksgiving, everyone. (Well — if you're American, anyway.)
As we celebrate today, keep in mind that Eucharist means "thanksgiving". We as Catholics celebrate thanksgiving every day when we celebrate the liturgy. It is our "thanksgiving sacrifice", referred to in Psalm 116:17 ("A thanksgiving sacrifice I will make; I will call on the Lord's name").
Which reminds me, I need to develop the habit of meditating on this aspect of the Eucharist each time I receive.

Happy Thanksgiving, chaver!
In Judaism, too, there is a prayer of thanksgiving. (We also have a holiday dedicated to giving thanks for a bountiful harvest, quite similar in concept to Thanksgiving.) It is always important to remember to give thanks for all the blessings and bounties of one's life, no matter what one's faith or circumstance. I wish you all the best.