Morison had been at Millwall for two seasons, having played non league for Stevenage and before that Bishop's Stortford, where he'd dropped after being released by Northampton Town - now he's heading for the big league.
"I was playing non league three years ago," he told the Pink Un. "Yes, it has been a steep rise, but one I have thoroughly enjoyed.
"It is definitely not easy - you have to work hard and I have managed to do that. I have got lucky at times, and I have managed to still score goals and as a striker that it what you are judged on.
"It is something you dream about when you are a kid, to play in the Premier League, but when you are in non league it is the furthest thing from your mind. You are just worried about whether you are going to play league football again, let alone play in the Premier League.
"It's a fantastic opportunity. It is a fantastic football club. I really enjoyed playing the few games I have played against Norwich. It has a fantastic fan base, it's a great part of the world and a fantastic place to play football.
"I can only do my best really. It is an opportunity to play in the best league in the world - I will do my best and work as hard as I can for the team and if I do get a chance, try and score some goals."