Kokoro no Hana (こころの花) [flower of the heart] is the flower that exists is all human's hearts. When the person is feeling saddened, the flower starts to wilt and die.

The desert people can pull out the flower of the heart from saddened people. When they do, the flower is encased in a long crystal and the human is put into a ball. The desert people use the crystal to turn objects into the dezatorian monster.