Perfect world upgrading (Soul stone source and fuse)

Fusion
In order to fuse soul stones with equipment, a player only needs the soul stones and slotted equipment. The amount of soul stones which can be fused into a slotted equipment is dependent on the equipment's number of slots. The level of soul stone you can attach should be equal or less than the slotted equipments level (found underneath the equipment name; not to be mistaken with the equipments Lv. requirement) .

Soul Stone Source

Monster Drops
On rare occasions mosters may drop Soul Stones. Higher level monsters drop higher level Soul Stones.

Quest
completing certain quests also reward you with Soul Stones.

Vendor NPC
Vendor NPC's sell Lv. 1 Soul Stones.

Alchemist NPC
Alchemists sell Lv. 5 Soul Stones, and also provide the service for upgrading Soul Stones to higher levels. Upgrading Soul Stones is similar to crafting where you simply combine the raw materials to create a higher level Soul Stone (no skill required) . Below is a simple chart which you can use to see how many Lv. 1 and Lv. 5 stones you need to make higher level Soul Stones (the recipe can be seen in game as well)





* Number of Lv. 1 Soul Stones of a particular Soul Stone Lv.
** Number of Lv. 1 Soul Stones of a particular Soul Stone Lv.
 
Equipment to fuse: Weapons
NPC: Ironsmiths

Equipment to fuse: Armor
NPC: Tailors


How to Fuse
Obtain a slotted equipment and the soul stones you wish to use.
Head for the required NPC and choose the Soul Stone Fusion option. The ff. window should pop up.



Drag the slotted equipment and soul stone into the window, the yuan costs for the fusion should appear, and the click the confirm button. Fusion never fails so there's no need to worry. Repeat the process for other the next soul stones and equipment to be fused together.
Should you find yourself with undesired soul stones fused with a slotted equipment, you can have the NPC's remove the attached soul stones through purification.
Simply select the purify option with the necessary NPC based on the equipment, and the window below will pop up.



Drag the equipment to be purified into the window, then the yuan cost for purification should appear. Click Purify and all the soul stones attached will be destroyed. Purification destroys all attached soul stones and will not return them to your inventory. So before you purify a slotted equipment make sure you really want all the soul stones removed.

Fast Facts
Special glows/auras appear on equipment if you 2 level 5 soul stones into a slotted equipment.
The enhanced glows/trails/SFX appears the moment you attach four (4) Lv. 8 soul stones into a slotted equipment.

You cannot slot higher level soul stones into lower level equipment. Always check if the lvl of the Soul Stone you are fusing is equal to or less than the slotted equipment. Also check if you are talking to the correct NPC and you have enough yuan for the fusion fee..

The easiest way to find these soul stones is by having the Alchemist NPC Upgrade/Synthesize them into higher level Soul Stones.

Soul stones can be mixed and matched. It doesn't have to be the same type.
Some crafting levels have level requirements or a quest.