What Is Haki In One Piece?

Why are pirates so obsessed with their Haki? Seriously, they talk about all the time. You'd think they'd be more interested in doubloons? Or old maps? Or medically proven ways to prevent scurvy?

One Piece 1081: Strongest Haki users in One Piece updated ranking

What is the limit to Haki in One Piece? - Quora

One Piece: All Haki Types and Its Subforms (Explained)

One Piece: What is Haki? - All Forms of Haki Explained - FandomWire

One Piece: Every Sub-type of Haki, Explained

One Piece: All Haki Types and Its Subforms (Explained)

The 15 Strongest Haki Users In 'One Piece,' Ranked

One Piece: How Strong Is Future Sight Observation Haki?

What exactly is Haki in One Piece? - Quora

Haki One Piece Sound Effect by AngeD Sound Effect - Meme Button - Tuna

Busoshoku: Gusoku, One Piece Role-Play Wiki

Explaining Haki : r/OnePiece

When Did Haki First Appear In The One Piece Series?

What is Observation Haki in One Piece? - Quora

My understanding of All types of Haki(+Advanced) So far. Spoilers