Louisiana Civil Code Tit. XXIII, Art. 3421. Possession

Possession is the detention or enjoyment of a corporeal thing, movable or immovable, that one holds or exercises by himself or by another who keeps or exercises it in his name.

The exercise of a real right, such as a servitude, with the intent to have it as one's own is quasi-possession. The rules governing possession apply by analogy to the quasi-possession of incorporeals.