Defender Raven was on hand to slot home the deciding goal four minutes from the end of extra-time as Caley stunned 10-man Celtic 3-2 at Hampden Park to set up a final showdown with Falkirk.
The 30-year-old, who has only managed a handful of goals in his entire career, struggled to describe how he felt following an eventful match which he admitted could have gone either way.
He said: “I don’t know really, a bit emotional to be honest – got tears in my eyes. I thought it was just our day and to score the winning goal today is a dream come true. In a cup semi-final against Celtic, I can’t believe it.
“It was topsy-turvy and it could have gone either way.”
Celtic took an 18th-minute lead through Virgil van Dijk’s brilliant free-kick and then had claims for a penalty turned down just before half-time when the ball struck Josh Meekings’ hand a yard from goal.
Caley were awarded a penalty in the 55th minute which saw Celtic goalkeeper Craig Gordon sent off for bringing down Marley Watkins.
Greg Tansey slotted home the spot-kick to make it 1-1 and Raven would end up settling the match right at the death after Edward Ofere and John Guidetti had made it 2-2 in extra-time.