A manifestation of ultimate happiness, and a most effective shield to the vacuous Dementor's influence when near; the Patronus is a magical sight to behold. Often appearing in mere whisps, a fully-formed Patronus is rare and can only be cast by a truly competent witch or wizard, with the form tied closely to their personality.
The latin-derived incantation 'Expecto Patronum' literally translates to 'I await my protector'. Harry's Patronus takes the form of a stag, the same form his father took as an animagus during his time at Hogwarts. In this way, metaphorically speaking at least, Harry's parents continue to protect him long after their death.
If you're the type who likes a little extra security as you nod off, this Patronus Light-up Wall Art is perfect for the bedroom. A little too gentle to read by, the cool glow provides extra protection as a night-light, with a proud stag standing watch.