The left-back played the second half of the 1-0 Carabao Cup third-round defeat of Huddersfield
Asked if he felt emotional stepping onto the Selhurst Park pitch as the club's fans chanted his name, Souare said: "Yeah, definitely. That touched me a lot and I give everything for them.
"It made me happy. It is a good feeling to be on the pitch. I just want to say thanks to the fans and everyone at the club.
"I am just trying to give everything for them. This is my first big injury since I was a footballer. It is a fantastic feeling to be back.
"It was (traumatic). The most important thing is that I am back playing.
"It is step-by-step. I played with the first-team. It is a different level in the Premier League. I played 90 minutes with the Under-23s, 45 minutes with the first team.
"It is working, getting my fitness better. I played the second half and I am very happy to be back. And we are happy for the win."