The clematis type person is one who prefers to be elsewhere. The mind is always somewhere else. In universe full of spaceships, maybe, or 'away with the fairies'. They will seem inattentive and disinterested in what is going on around them. This may be because this person does not wish to be here on this planet, place, whatever at this particular time, so the mind leaves in order to try and cope. Ironically, this makes things worse, as they become ungrounded, and susceptible to negatives. They will find can't cope with being some place, but trying to leave makes things even worse, so they become more ungrounded.
This remedy is also said to be good for those who have fainted and makes up part of the Rescue Remedy formula.
For Empaths:
It's not unusual for the empath to want to be anywhere but 'here' because 'here' may not feel a very nice place to be.
The empath will often try to escape their body, more often than not entering into a dream or fantasy world, having incredible adventures in other parts of the universe or other dimensions. Some create sagas that may go on for years.
The natural inclination for the Clematis Empath is to leave their body, as soon as they feel uncomfortable. This makes them ungrounded and unable to cope with crowds, bad situations, traumatic events, etc.