The striker scored his 30th league goal of the season on Saturday.
The forward was once again the difference on Saturday afternoon as he scored his side’s third goal in the 3-1 win over Hearts.
That goal was his 34th in all competitions this season; his 30th in the league in what has been a highly impressive campaign for him.
The result all but secured Ronny Deila’s side the title, and for Griffiths in particular he says he is loving going out and proving people wrong in that success.
“I’m thriving at the minute,” he told celticfc.net. “I love going out and trying to prove people wrong, scoring goals, helping my team get three points and ultimately win leagues.
“Everyone said our bubble was burst but to come to a venue like Tynecastle and dominate the game like we did speaks volumes.”
Griffiths will be hoping that he can enjoy similar success next season under whomever the club decide to appoint as their next boss.
Ronny Deila has confirmed he will exit in the summer, and speculation is rife as to who will replace him at Celtic Park.
The Bhoys will certainly need to be at their best once again, with Rangers' return to the top flight after a long absence promising to offer a serious challenge to their dominance of the Scottish Premiership.