How to Use the Sacrificial Heart in Path of Exile 2

1. Once you've obtained the Sacrificial Heart, your next step is to Path of Exile 2 Currency use it to complete the secret quest Blood Sacrifice. 

2. The altar you're looking for is located in Aggorat, the same region where you can also find Doryani's Laboratory.

Tips: The specific location is known as the Trial of Sacrifice, an eerie area filled with Vaal followers performing dark rituals.

3. If you're unfamiliar with Aggorat's layout, focus your exploration on the right-hand side of the map. 

Tips: The altar room is distinct-it looks like a morgue or ceremonial chamber with blood markings and ritual symbols. You'll also find a checkpoint nearby, which helps in case you discover Doryani's lab before locating the altar.

4. When you arrive at the Trial of Sacrifice, you'll encounter a group of Vaal cultists already in the middle of a ritual. Defeat them, and one of the corpses will drop a Sacrificial Dagger, which you'll need to complete the offering.

After clearing the area:

Interact with the altar and place the Sacrificial Heart on it.
Use the Sacrificial Dagger to stab the heart and initiate the ritual.
A short cutscene or visual effect will play, signaling that the Blood Sacrifice quest has been completed.

Once done, you'll automatically receive two passive skill points and a bonus weapon set slot as your rewards. These rewards will appear in your character menu and POE 2 Currency for sale can be used immediately.