Whenever this ability is activated, it will be impossible for others to move Melody, or whoever she has chosen to use this ability on. Nothing would be able to move the person, and for example, if they were in mid-air when they activated this ability, they would simply hover there, until the ability was deactivated. They would remain frozen in whatever position they were currently in, even if it'd normally be impossible, and even if they tried to move themselves. However, the person is not frozen in time when this is done, and he or she will still age. The people will also still be subject to harm.