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: 5 Applications Of Armament Haki (& Their Best Users)

One Piece: 13 Characters Who Can Use All 3 Haki Types

15 Things You Didn't Know About Haki In 'One Piece

One Piece Reveals a New Name for Haki

One piece -Luffy haki by Franktaichou on DeviantArt

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

One Piece Haki: Why It's More Powerful Than Devil Fruits

What exactly is Haki in One Piece? - Quora

When Did Haki First Appear In The One Piece Series?

When does Luffy learn Haki?