Lyon sat out Australia's first six games of the tournament, but was called upon to make his World Cup debut against England at Lord's last Tuesday. An economical nine-over spell of 0/43 saw the Sixers offie retained for the clash against New Zealand over the weekend where he again impressed with figures of 1/36 off 10 overs.
"I always had confidence my chance would come, that's for sure," Lyon told AAP.
"[Langer just told me to] stay ready, so I don't have to get ready.
"It's a lot better being part of the squad than sitting back at home watching it on TV. Because you get late nights back there and you're not a chance of playing."
The pressure built by Lyon during his spells has proven effective for Australia, with seven wickets falling at the other end while he's had the ball in hand this tournament.
"I think it's about bowling in partnerships," Lyon said.
"I've always said throughout my whole career it's not about personal success for me. It's about bowling well in partnerships and building pressure.
"When you've got world-class bowlers at the other end it's even crucial if you can bowl well in partnerships and have that understanding of who we are bowling to and who is bowling the other end.
"That plays a bigger role in cricket than other people realise."
Meanwhile, Sixers quick Sean Abbott has been in action with the Australian A squad during their tour of the UK.
Abbott has returned figures of 2/40 (10 overs) and 1/56 (9 overs) in tour matches against Derbyshire and Gloucestershire respectively.