The sentence where the expression is used is the following: I started my talk with a seductive dance because I wanted you first to feel the seduction, to get you kind of to gut level.
Thanks in advance.
First let me say, the sentence is confusing, and I wouldn't say "get you to a gut level". I have never heard someone say this. Since this is not a common expression, I can only guess at the meaning. However, I'm pretty sure the meaning is this:
"Gut" in this case means intuition. Common phrases using the word "gut" are "trust your gut" (decide using your instinct/emotions), "feel it in my gut" (something deeply resonates with you) and "gut reaction" (a response based off of emotions rather than logic)
So in this context, it most likely means that the narrator in your sentence wants to seduce someone so that he/she will make decisions based on emotions and arousal, rather than on logic.