I doubt Swords have Dreams too but i can believe if the Swords Carry the wishes of their previous wielders but only the ones that were able to tame the Sword.
We are still unsure of the requirement for swords to become black blades. If there is such thing as "Bonding" with the swords then maybe The Swords carrying the Will/Wishes of the previous Wielder is something but not the blade itself having a Dream.
I think they work just like Merry.
@Salah WG @Albino π
Yes, i believe Swords are just like Ships
Imo it's related to Klabautermann
Klabautermann is basically Spirit of Ship, & i think Swords have Spirits too, it represents the manifestation of their will (Not Power or anything)
It actually applies to Devil Fruits too & other things in One Piece & i will share with you very interesting hints
First of all Ship Spirits (Klabautermann which btw exists in both One Piece & Real World Culture) are diligent creatures for their Masters (The Crew in this Case & Wielder in Swordsmen Case) & they are like that for those who take care of them (Such as Merry which loved SHs)
The Ship, Sword & Devil Fruit can all be used by the owners however "True Bond" can only happen when the will of their Spirits become one with them. In Ship's Case, it's by caring about it, in Sword Case, it's by taming it or proving yourself & in Devil Fruits, they call it "Awakening" or as Kaidou explained "Your Body, Mind & Powers become One"
Everything in One Piece works in harmony with these Spirits, it's when people are good that things start to bond with them & the world becomes harmonious & happy (Laugh Tale), but there is a second face to these Spirits !!
A Devil-Like Form, a Sinister Evil which only appears when the Ship is Doomed (Or in people's case, when they are going to Die)
And it's actually the Klabautermann that is blamed for such misery (You can check Wikipedia for all of this btw)
So if Ships have Spirits & according to Real-Life Mythology, they also have Sinister Forms which appear to Doomed Crew
Then Sword Presence should also have a Sinister Form which only becomes Visible to a Doomed Wielder !!
And this was hinted at back in Loguetown when Zoro took Sandai Kitetsu & Shop Owner said that this Sword brings Horrible Death to those who wield it due to being of very high Quality (Meito), he actually said this applies to all Kitetsu Swords !!
So do you see now why Zoro witnessed a Shinigami? That's actually the Sinister Form of his Sword which became visible only because Zoro is Doomed & about to Die.
The Story is much bigger than just Swords & Dreams
There is a reason Brook is a Skeleton whose entire Crew were Doomed, who returned from the Dead & became the embodiment of Laughter & considered the Funniest (At least by Luffy)
Brook's Story, Joy Boy, Laugh Tale, Meito Swords, Ship Spirits, Haki, Devil Fruits, Awakening, Noah, Ancient Weapons, Prophecies, Germa Experiments, The Moon, The Sun, Dragons, Voice of All Things ... etc It's all part of a Single Lore, of a Single Idea, they are all connected
And let me add two final Hints to further make you think more about this
Klabauterman comes from an old german word that means "Rumble" which means to make a Continuous Deep, Resonant Sound !!
Didn't Zunisha hear such Sound when Luffy was Dying?
Didn't Zoro start talking about his Heartbeat & Heartbeat of every single thing when he almost died against Mr. 1?
It's not coincidence that Chopper's Island is named "Drum Island" & his Invention is called "Rumble Ball"
And do you know what's the Title of Chapter 149? It's "Rumble" !!
And if you check Wikipedia, Klabautermann have an unrestrained Musical Talent or attraction to it
That's why Dying Heartbeat of Luffy was described as Drums?
That's why Brook is a Musician
Why Luffy always wanted a Musician since East Blue Saga
Why Enma reacted to the sound of Hiyori's Music
Why the Song Bink's Sake exists in first place
And even why Oda made Shanks Daughter in Movie Red a Musician
... etc
Wano have spoiled me so so much about entire Story, i will soon share my Full Analysis explaining every single Mystery & Foreshadowing ever
If only people stop reading it from Power Level Perspective & focus on the Hints & Lore & Hidden Story, we would discover so much more
To summarize my Analysis in one sentence
Entire Story is actually a Coin, every Arc, every Character, every Chapter, every Mystery, every Dream ... etc are actually separated into 2 Faces/Parts, hence why this Manga is called "One Piece"
It basically means that if we don't see everything from two sides then we cannot understand One Piece
As for Black Blades, think of it this way
If everything has Two Faces/Forms/Sides, then what happens when we finally make them whole, make them "One Piece"
Before i give you answer, i need to explain one more thing about Spirits
The Spirits lingers & becomes stronger when there is Unjust/Unfair Death or Death without Fulfilling a Promise/Goal
(This idea is famous in Japan, it even exists in other Manga such as Hunter x Hunter & Naruto)
So imagine what happens to Enma when Oden was Killed Unfairly & Tricked & was prevented from fulfilling his Promise/Goal
Enma's Sinister Form of it's Spirit (Shinigami that Zoro Saw, similar to Ship's Klabautermann) cannot be tamed unless Oden is given Justice!
So returning to what i said about combining Two Sides, a Black Blade can only be forged when both of it's Spirits are Tamed
Zoro tamed The First Piece when he fought King, and that's the caring side of Enma which wants it's wielder to be worthy
But for the second side which is sinister & gives horrible deaths to the wielder, they must be tamed by fulfilling the promise that was left undone & was ruined by Death (This is basically the whole theme of One Piece about Inherited Will & Good vs Evil)
So Black Blades are very very rare because they are situational & basically "Fated" to happen
So likes of Roger, WB, Shanks, Rayleigh ... etc simply didn't turn them Black cuz they weren't Fated to, not because they lacked Skills
Zoro gonna turn Enma Black when he slays Kaidou (ZKK) which will finally remove the Sinister Presence of Enma & remove Zoro's Nerf