A picture is worth a thousand words, as the phrase goes.

And after this snap of Pope Francis looking miserable while standing beside President Donald Trump at the Vatican began circulating online Wednesday, many people rushed to social media to suggest what some of them might be:

Vatican Pool - Corbis via Getty Images This photograph of President Donald Trump, wife Melania Trump and daughter Ivanka Trump meeting Pope Francis is going viral -- because of how sad the pontiff looks.

Trump’s differences in opinion with the pontiff over issues such as immigration and climate change are well documented. But it would be unfair to say the pope looked completely forlorn throughout the president’s visit.

Reuters news agency noted how he “smiled faintly” as he greeted Trump, but also pointed out that the pontiff was “not as gregarious as he sometimes is with visiting heads of state.”

Twitter users, however, compared the above image to photographs taken of former President Barack Obama with the pope, in which they are both smiling. They also suggested just what Francis was thinking of as his picture was being taken with the president, wife Melania Trump and daughter Ivanka Trump.

Check out a sampling of the tweets below:

Trump & Pope Francis

vs

Obama & Pope Francis



Seriously the photos speak for themselves! 😂😂😂

Trump meeting the Pope at the #Vatican pic.twitter.com/kWWUECwZRa — 🇨🇦 Charla 🇺🇸 (@Charla_04) May 24, 2017

Pope's face says it all! 😂 bet he's wishing he was with anyone other than President Bawbag Trump pic.twitter.com/m2T3OEqWNg — ForeverMorrissey (@Mozgirl71) May 24, 2017

trump is adam, ivanka melania and the pope are the remaining cast members pic.twitter.com/5m3u6zkjB8 — Bia 🥀 (@BnazF) May 24, 2017

The look you have on your face when you meet the Pope with Trump. pic.twitter.com/5k426oLiEY — John Hergt (@natureofthings7) May 24, 2017

Pope Francis. President Trump. What is it that makes everyone sour around Trump? pic.twitter.com/uB30tqtuM0 — Ezra Zydan (@RiseofGaea) May 24, 2017

Meanwhile at the casting call for Corpse Bride 2 #POTUSAbroad #popetrump pic.twitter.com/jSc9FwNwX6 — Mister Race Bannon (@MrRaceBannon) May 24, 2017

The Pope has met Donald Trump... Think this AP picture just about sums it up pic.twitter.com/0E96npzQJa — Louise Burke (@Louiseontwitr) May 24, 2017

Nice shot of a cheerful Pope Francis giving Trump the tour. 'Chairs, floor, walls ... We're done, get out.' pic.twitter.com/94Rv9U8h9t — Damien Owens (@OwensDamien) May 24, 2017