Conor Hourihane knows the euphoria prompted by play-off victory and the numbness of defeat.
The key to play-off success?
"You need a bit of everything," Hourihane says.
"You need things to go for you. You need to perform. You need everyone to play their part - the keeper has to make a few good saves, the defence has to be solid and your strikers need to hit form.
"You need calm heads as well. And you need a bit of luck, that's for sure."
Hourihane, who is on loan at Swansea from Aston Villa, speaks from experience.