Dementor's Kiss

Any Harry potter fan will be familiar about Dementor's Kiss. For others:

The Dementors are soulless creatures considered to be among the foulest beasts on Earth. They are soul-sucking fiends who guard the wizard prison. Dementors can perform the Dementor's Kiss, where the Dementor latches its mouth onto a victim's and sucks out the person's soul. The victim is left as an empty shell, incapable of thought and with no possibility of recovery. It is believed that existing after a Dementor's Kiss is worse than death.

How do these authors create such characters?? Does it really exist??

I was able to correlate this Dementor’s Kiss as:

As one excellent quote says -

"Without leaps of imagination, or dreaming, we lose the excitement of possibilities. Dreaming, after all, is a form of planning."

Dream is something like oxygen to the purpose of life.. Dreamers are the achievers.. Dream is a mirror to the subconscious mind. We imagine what we wanna do.. how it can be done.. How to fight it..

When we work towards the dream miles look like a few centimeters. Every battle we win looks so small. It keeps us moving. Makes life interesting and enjoyable..

Imagine suddenly the dream is taken away.. Oxygen out of life.. We have no purpose to live. We can feel the leap in the heart. A big gravitation hole is formed. Everything we see or do, mocks the lost dream.. The hole absorbs everything. Happiness, joy, the charm. We are left with nothing. Just Like the Dementor’s Kiss