On the day of the wedding, Thumbelina goes outside one last time to see the sun, and is saved, at the last possible minute, by her bird friend. He takes her to the land of flowers and drops her in a blossom where there is a tiny prince, just her size, to whom she becomes (happily) married
Answer:
it depends on where you send that mail
I believe it is personification because he is giving the sand the ability to stretch and to be alone which sand cannot do.
D I’m not sure though so if it’s something important I wouldn’t put that