Henry made a triumphant comeback when he scored the winning goal from the substitutes bench in Arsenal's 1-0 FA Cup third round victory over Leeds United on Monday, and there have been calls for the Frenchman to be given a starting role in the Barclays Premier League trip to Swansea this weekend.
The New York Red Bulls striker has signed a short-term loan deal in north London during the MLS close-season, and Gibbs has praised Henry's impact both on and off the field.
"When I was a young boy I used to watch him, so it was pretty amazing [to see Henry score against Leeds]," he reflected. "I never got the chance to meet him before, but he has come back and shown what a true legend he is.
"He has added something to the dressing room, not just on the pitch. We know he can't play every game but his personality has come in and lifted the whole changing room.
"It is a pleasure to have him in the squad again."