Impure/ Intruisive thoughts

[HeavenChaser]

Hello,

I struggle from intrusive and impure thoughts. I believe it is getting better but they still pop up and torture me. But this situation has me worried I committed a mortal sin. I was waking up and I had an impure thought, I do not know what it was about I completely forgot. I ended up getting aroused, and when I realized this I stopped the thought. I know some people say when you wake up you are not in complete control of your thoughts, which could explain why I did not recognize or stop the thought right away until I realized I was aroused. Anyways is this a mortal sin? Thank you.

 

[TRON]

You can’t stop a bird from landing on your head, but you can stop it from building a nest.
In other words, when you get an impure thought take it captive and do not let it go any further.

I spend a lot of time during the day combatting garbage of all kinds that runs through my mind. When I get hit by a flaming arrow, I send it right back with a “Blessed be God Forever”

Especially since you were in a sleep state, I really doubt it is a mortal sin, however when you go to confession it could not hurt to confess it anyway.