To get PoE Currency abilities in Path of Exile, you need to equip gems into sockets in your equipment. Any course can use any skill, but gems do have stat and level requirements. Gems can be outfitted in slots of the exact same color.
There are two forms of gems:Ability gems: These include an attack, spell, projectile, or trap/mine. Support gems: All these gems modify supportable skills when outfitted in a connected socket (one that has a line drawn to some other socket). So as to get an effect, the service gem must be harmonious with all the gem at the socket that is linked. As an example, won't do anything to some linked melee attack stone. Make sure your connected gems are compatible!
Equipped gems level up as you make XP, getting ten percent of their base XP granted from monster kills. Your character encounters an XP penalty when revisiting lower level regions, but that penalty doesn't apply to gems. So you can quickly level gems by replaying areas which are than your existing level.
Each piece of loot you acquire takes varying levels of space in your bag up. To carry as many possible things at the same time, you have to move items around and squeeze items into the allotted spaces. After that, in the event that you pick up PoE exalted orb each and every thing you 20, your bag is bound to fill up fast.