You will be able to raise the overall level of all of the maps in your Atlas collection if you collect Voidstones. This will allow you to explore more of the world.

You can find a spot on your atlas that is missing four of its sockets if you look in the very bottom center of the book. If you haven't been able to find any pedestals just yet, it's because you need to first unlock them before you can start looking for them. Pedestals can be found all over the map. As soon as you have these sockets in your possession, you will immediately be able to insert any one of the four unique voidstones that are available into them. You can do this as soon as you have these sockets in your possession. The following is a list of the four unique types of voidstones that can be acquired in Path of Exile:

Occasionally, the Seer will let go of a ceremonial Voidstone and it will fall to the ground.

The Consumer of Worlds has a sporadic opportunity to scatter omniscient Voidstones among the worlds it devours.

- The Grasping Voidstone is an extremely valuable item that has a chance of being dropped by the Searing Exarch at random

- If you have one voidstone socketed in any of your equipment, then each of the maps has a level of four associated with it

- If you have two voidstones socketed in your equipment, then the difficulty of each of the maps will be increased to level eight

Game guide for Path of Exile, focusing on strategies for defeating the various bosses in the game
To start, I would like to give you a word of caution. Because the most formidable bosses in the game are the ones responsible for dropping voidstones, players won't have access to them until late in the game's endgame. Voidstones are required for certain upgrades.

After you have progressed to level three and completed a certain minimum number of maps at that level, Envoy will eventually show up on one of the maps. Your mapping device will immediately begin the process of unlocking new symbols as soon as it comes into view of the feature in question. If you open the map immediately after inserting it into your device, then activate one of these three symbols, and finally open the map, you will play the map while under the control of the respective boss.

You only need to finish maps while these bosses have their influence active in order to gain access to the Exarch and the Eater of Worlds. In order to do this, you must complete the maps. Before you can advance to the final phase of the game and take on the game's two primary foes, you have to first achieve victory over a series of less powerful bosses, such as the Infinite Hunger. In addition, the same three symbols that are displayed in your map device are shown in the atlas directly above the sockets where the voidstones can be placed. These symbols can be found in the upper right-hand corner of the atlas. The location of these symbols in the atlas can be found in the top right-hand corner.

If you have successfully completed each map, you will receive an invitation to speak with the Exarch and the Eater of Worlds once the map has concluded. This invitation will be given to you if you have successfully completed all of the maps. This is only going to take place if you have made a significant amount of progress. If you are victorious in your battle against them, you will be rewarded with the voidstone that corresponds to the level of your victory.

The Seasoned Accomplished Guide in Addition to Grandfather Uber
The battles against the Maven and the Uber Elder are the most challenging encounters in the game. Acquiring the other two voidstones is made even more challenging by the fact that the Maven and Uber Elder fights are the most challenging encounters in the game.

Detailed Instructions on How to Make Contact with the Maven
To earn the Exarch or Eater of Worlds achievement, you must first finish all of the required maps while under the influence of the Maven and then proceed to defeat the boss of each map in order to earn the achievement. Following the successful completion of three bosses in this fashion, you will be granted an Invitation to the Maven. During this event, you will compete against each of the three bosses simultaneously. After you have accomplished that, it will continue in the same manner, but there will now be four map bosses, then five, and so on, until finally, you will be fighting ten bosses at the same time. After you have completed that, it will continue in the same manner. After you have finished doing that, it will proceed in the same way from there on out.

There are even more Maven Invitations available for you to choose from, and some of them, like The Feared, are even more challenging than these Atlas Invitations. You will receive these one-of-a-kind invitations as a reward after you have defeated specific map bosses that are currently under Maven's control. These map bosses can be found on various maps. Using The Feared as an example to illustrate this point:

The region of the Chayula Cortex known as the Domiciliary
Those Parts of the Abyss That Are Both Fascinating and Enticing
The place where thoughts and concepts are created.
The lack of signification and significance.

You will be able to claim the Crescent Splinter as your reward after successfully completing all of these battles and coming out on top in each one of them. After you have gathered a total of ten Splinters, you will be able to engage in combat with Maven herself and receive the Voidstone as a reward at the conclusion of the skirmish. This will make it possible for you to finish the mission with flying colors.

Specific instructions on where to find and how to approach the Uber-Elder are provided here.
The Uber-Elder is the most difficult boss to defeat because it necessitates the collection of a significant number of fragments. On the other hand, in order to access that location, you will initially be required to eliminate the Elder and the Shaper on your own before proceeding. There is a possibility that level 16 maps, also known as Guardians, will drop from level 14 maps. These maps have a chance to drop.

The Guardians are a unique group of watchers who keep an eye not only on the Elder but also on the Shaper.

On the other hand, in order to access that location, you will initially be required to eliminate the Elder and the Shaper on your own before proceeding.  This indicates that you will first need to defeat those two bosses, and in order to do so, you will need the so-called Guardians, which are also spelled Guardians. Guardians is a common misspelling of the word. There are a variety of ways to acquire Guardians, which are cards with a level 16 that have a chance to drop at the level 14 level cap. As a result of the addition of the Void Guardians and Elder Guardians, the total number of Void Guardians and Elder Guardians is now eight.

The following places, which are shown on the following maps, are where you can find the four Guardians of the Void:
The Phoenix's Forge in its finished, unabridged form. When you have the four fragments in your possession, you will be able to open a portal to the Shaper and engage in battle with him after you have vanquished all four Guardians of the Void. This will allow you to access the four fragments. You won't be able to do this unless you've already vanquished the four different Guardians of the Void. If you are able to defeat him, you will be rewarded with a piece of a Shaper that can be combined with the Uber Elder. This reward is only given if you are successful in defeating him. If you are able to eliminate all four Elder Guardians, a pathway that leads to the Elder will become available for you to take.

You will be given an Elder Fragment as a reward if you are successful in defeating him, and this fragment can be used in conjunction with the Uber Elder.