What does the sentence "I have an unforgettable firefly in my left hand and a long meditation in my right hand for ten years" mean and where does it come from?

This should be a slightly sad love. On the one hand, it is waiting for many years, on the other hand, it is an unforgettable moment. If someone else wrote it to you, I believe it was someone who once loved you deeply. She waited persistently for the beauty in her memory. What she needs now is more love. It is impossible for her to accept you as soon as you appear. If you know how to cherish and try to make up for your previous mistakes, maybe you can save something.

This is written by Lolo. It comes from Rollo's random review.

Hope to adopt, thank you! ~