Murray lasted just 19 seconds in last week's Allianz Stadium opener, taken from the field and immediately ruled out after he got his head in a bad spot when attempting a tackle.
He has not trained since, but declared on Monday morning he was now symptom free and will therefore be able to perform light duties on Tuesday.
All going well, the Rabbitohs captain expects to get back to proper training on Thursday, before receiving clearance to feature in Sunday's do-or-die rematch at Moore Park.
It would come as a massive boost for the Bunnies, with Murray the most underrated aspect of their red-hot attack.
"I feel good. I've had a couple days to chill out now so I feel good today," Murray told AAP.
"The long turnaround helps.
"There's not much you can do with these types of things. There's a lot out of your control.
"So you just got to hope and pray that you feel alright. I've just been manifesting, trying to believe it into reality."
Murray's concussion was the second serious one of this season, after also copping a knock in the State of Origin decider.
Any player diagnosed with a concussion also requires clearance from a neurological specialist in order to return inside 11 days.
Murray admitted he had spent the weekend worried over his availability, but insisted he'd awoken with a better mindset on Monday.
"The last few days wasn't the best, just a little bit stressful. You start to overthink stuff," Murray said.
"But at the end of the day I feel like next week when I look back at this, it's two days not worth stressing about.
"You shouldn't stress the small stuff. It's hard to avoid sometimes, but I am out of the house today, I feel good. Training tomorrow so should be alright."
Murray is also adamant he can get on top of the concussion issues.
His three most recent concussions, dating back to the 2020 State of Origin opener, all came as the lock attempted his first tackle of the game.
He also copped significant contact in the opening tackle of last year's grand final, but was able to stay on the field.
"There's a little bit of a trend now," Murray said.
"I've just been a little bit overexcited. A little bit reckless with my technique and stuff like that.
"So I just need to fix that up. I'm confident I can do it. I've done it before.
"You've just got to chill out a little bit. You're a little bit hyped when it comes at the start of the game. So just something to look at."
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