the plasticity of the brain, recall of language

I was in french immersion from kindergarten to Grade 7. I was fluent and only spoke french at school during this time. After this I did not speak french much at all and gradually felt like I had lost a lot of it. Well I had a surprise today which left me in shock. It seems I have started to remember french. I had just finished skiing and was at the lodge waiting for my husband when I began to recall french. It is not completely fluent but words that before were difficult to recall are now popping into my brain easily. Is this because of meditation? positive healing thoughts? I am not sure but I will continue with the way I am doing things and see what happens.