What a Branch is
Each map has exactly one: the Breezy Plains Branch and the Whisperwake Isles Branch. Activating a Branch reveals the Blooms around it, opens a new layer on your map and adds a fast-travel point. From then on it grows with every Lumin Amber you infuse, and each stage grants its region a blessing. The game explains it in its own words:
“Branches serve as central points for Vein energy transmission, infusing vitality into their surrounding areas. By activating a Branch, you will be able to sense the nearby terrain through the Vein connected to it underground. As Branches absorb the energy from Lumin Ambers, they progress through various growth stages, each providing unique blessings.”
“Branches are an important part of the map system. After you activate a Branch, you can reveal the Blooms across a large area and unlock a new map layer where Pathfinders can view area info.”
“The Vein represents the energy cycle pathways that support the lands of Idyll. At points where Veins converge at the surface, they form the Branch, which enhances the vitality of the surrounding environment.”
Breezy Plains Branch
Grows on Lumin Amber: Breezy Plains, 150 of it to reach the last blessing.
Whisperwake Isles Branch
Grows on Lumin Amber - Whisperwake Isles, 150 of it to reach the last blessing.
Not pinned on our Whisperwake Isles map: this build's map data carries no marker for it.
“After a wishing event, Pathfinders can teleport to the Branch and claim a mysterious Aniimo egg.”
What Branches are not
“Bloom Branches” and a “Bloom Chart”. No such system exists in the game. Blooms are real, but they are fast-travel points: “Blooms are mainly used for teleporting and have nothing to do with upgrading a Branch.”
“Light Embers” or “Lumens” XP pickups. Not in the game either. The collectible is Lumin Amber, and Lumen is only the name of an accessory shop in Astra.
Lumin Amber as a Homeland resource. The item's own text says what it is for: “Amber infused with Lumin Power. Branches can absorb its energy to grow.”