Sexton's feet will barely touch the ground during a whirlwind summer that is set to prove a defining period for the outside half.
Having spent two months kicking his heels as he recovers from a hamstring injury, Sexton is now steeling himself for European and domestic back-to-back finals, the British & Irish Lions tour and then a move away from his hometown to France.
"There's a lot going on in my head right now, " said the 27-year-old. "We've got a big end to the season with Leinster and then we're straight into the Lions which is the pinnacle of your career.
"Then there's the move to France which was a big decision for me after nine years with my home province, but the most important thing is finishing on a high with Leinster.
"We're a very close squad and there's a few guys all leaving at the same time with Joe Schmidt so everyone wants to give the perfect send-off."
"Hopefully I've used up all my injuries for the year. It feels strange to feel so fresh at this stage of the season, usually I'm knackered. I've only played four games after two months off so I feel great. "