She is just my cat

She is just a cat,
so she will never know what life was like before her.
She is just a cat,
so she doesn't know what anxiety or depression is,
She is just a cat,
so I can't tell her how often the breakdowns were happening.
She is just a cat,
so she'll not understand the peace she has brought me,
She is just a cat,
so she won't realize that I needed her more than she needed me,
She is just a cat,
so I can't explain to her how dark the world around me was becoming until,
She became my cat.