Question about temptation and soul

[HaraKiriBlade]

I forgot an important expression that I am now trying to use in my essay. I heard this expression when one day a girl in my previous class talked about her having trouble deciding whether to add cream or not. She was on a diet and she said something about soul and resisting her temptation to add extra cream. I rotated my brain frantically to remember and came up with a few but they're probably not exactly what it is, as I tried typing them in google and it didn't come out the same as when I had typed it the first time I picked up this expression.
Here they are, and if any rings a bell please let me know.

"I was like, looking for my own soul..."
"I was like, trying to find the back of my soul..."
"I was like, finding my own soul..."
"I was like, searching for my soul..."

Urgh, it was such a cool expression and I just had to forget it. I should start looking for some brain-enhancing drugs.

[Tdol]

Of those, 'searching' seems the best.

[hobbes]

Could it have been "soul searching". Which is a common expression meaning that you look deep within yourself & ask an important question of yourself.

eg. Should I sell the house and move? Do I need to have this surgery?

or more light-hearted

"I want the extra cream, I know it will have consequences, should I do it?"

[MrPedantic]

Or something like:

"Well, I'd really like some extra cream...but resisting temptation is good for the soul..."

MrP

[Tdol]

And the heart.

[HaraKiriBlade]

It probably is soul searching as hobbes said, but she actually said in her sentence that she was searching her soul, or somewhere along the line. She also said something about coffee in connection to the expression but it's all vague now. I wish I could ask her but she's not in my class anymore and I barely remember her face now. (Some brain, huh)

As for my essay, I managed to get around my problem by using another expression, although I really would've liked to use it.

[Casiopea]

I'm with MrP: "resisting temptation is good for the soul". It's a common saying.
(from The Lord's Prayer:Lead us not into temptation but deliver us from evil.)