I just get emotional when I think about my boy on these type of pictures with his team mates and the World Cup. We want to be here till the end.
The players have seen the videos of fans wildly celebrating their quarter-final victory over Sweden and are aware of the mood in England but Dier says their eyes are fixed on their next task.
And if they do go all the way, I'm sure you'll all agree that it's only right that as a nation we have a day of celebration (and possibly a day to recover from the hangover) on the Monday.
Dele Alli has not suffered any recurrence of his thigh problem but Southgate compared the dressing room after Tuesday's match to a scene from M.A.S.H and the England manager knows from experience that, at this stage of the competition, there is a danger of players declaring themselves fit when they are patently not.
"It's felt like a good holiday we've been on - and we're enjoying every moment of it", said the Manchester United left wing-back.
Chris Tripper, who flew into Russian Federation after watching the defender and his team mates" earlier progress on TV, said: "I am sure England is going all the way'.More news: Tearful Russians exhale after World Cup loss
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"So we have shown character, we've shown belief and I think that's what is going to get us over the line in this game".
"I would say I would be disappointed if we didn't beat them".
"No-one wants to go home".
Winning the World Cup for the first time in 52 years has now transformed from fantasy into a distinct possibility, and Southgate thinks the rise of social media would only amplify the reaction if his England were to upset the odds and make it all the way.
There have been 60 matches, 157 goals and four penalty shootouts - but just four teams remain in the 2018 World Cup.
As the hysteria back home following Saturday's quarter-final win proves, so are the rest of us - and long may it continue, well, for at least another week.