The canine Spirit seemed like it would not allow her entry even if it meant that it had to remember her scent well enough to know if she was nearby.
It was making its intentions known that it did not want her there and would not lose sight of her until she left completely.
If she returned, it would be able to pick up on her scent and would soon find her again.
If it found her sneaking back in and if warnings were not enough to stop her then it would have no other option left available.
If it was forced into a hostile situation then it would have to get aggressive with her.
Ash could not fully understand the intentions of the canine Spirit but she was able to understand enough. 'Hah... this spot cannot be used anymore. Not without putting myself in danger if I keep pushing my luck.'
She could already imagine how things would turn out if she was in the middle of doing something or if she was caught carrying one of the Spirits she captured.