Pochettino said: "Amazing. It's a dream come true. For me, to think and come here to England, it was impossible but after the decision of my wife and my friend here, Jesus, they convinced me to join Southampton. It was one of the best decisions in my life to enjoy this great football country. It is like home.
"Every single period was an amazing challenge for us. When we arrived at Southampton, nobody knows us and we had to translate the idea to England.
"I think it was special when we played there (at Spurs). Tomorrow is a different thing. It is always emotional but I cannot hide my emotions for the club and it is going to be emotional because when you face your former team and the history was good, for those you remember. But as I told you before, it is 90 minutes and we want to win.
"It was a game, a tough game, because they started really well. We needed some luck. So many things went for us. I hope the positive things will be on our side tomorrow because for us, the three points are really important."
On Spurs manager Ange Postecoglou, he added: "I think he recovered the hope for the club and the fans. They are playing very good football. It is always difficult when you arrive to a new country and the challenge is massive, but I think he is doing a great job."