Though a soulbond is powerful, once you're bound to a one, your devotion to your soul path will be tested.

If you behave in a way that directly opposes or hinders the motivation, goal, or cause declared in your soul path (regardless of whether the act involves your soulforged armaments), your spirit tarnishes. It's anathema for you to commit acts opposed to your soul path or even to go a long time without taking action to pursue the path. You and your GM determine when you've performed an anathematic act. Anathematic acts trigger a curse known as soulforged corruption that degrades the energies within your soulforged armament. This brings out a flaw inextricably tied to the armament's true essence. The corruption flaw applies to you even when your armament isn't manifested. The rules for the flaw appear in the essence power. As normal for a curse, this affliction can be removed only by effects that specifically target curses, including the methods in Removing Corruption below.

Soulforged Corruption (curse, divine) A successful 4th-rank cleanse affliction spell, rather than ending this curse, reduces its stage by 1 (to a minimum of stage 1). Level your level; Saving Throw Will save against a very hard DC of the curse's level; Stage 1 You suffer the effects of your armament's corruption flaw. If you try to manifest the armament's essence form, you must attempt a DC 5 flat check. If you fail, only the normal form manifests, and you can't try to manifest that armament's essence form again that day (1 day); Stage 2 You suffer the effects of your armament's corruption flaw, and any attempt to activate the armament's essence form fails (1 day); Stage 3 Your soulforged armament is permanently destroyed. You can't have a new soulforged armament until you remove the curse entirely with the purify soul path ritual (1 day).

The effects of soulforged corruption can be staved off with the Cleanse Soul Path exploration activity or cured with the purify soul path ritual.

Purify Soul PathRitual 2

Uncommon 
Source Impossible Magic pg. 101
Cast 1 day; Cost rare incense and offerings worth a total value of 10 gp × your level
Primary Check Religion (trained)

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You delve inward, spending extensive time contemplating the purity of your own soul and your past actions. If you aren’t truly penitent, the outcome is always a critical failure

Critical Success You reconcile your misdeeds with your soul path, removing your soulforged corruption, so the corruption flaw from your armament stops affecting you. Before your reconciliation is complete, you must perform a special quest or other task in accord with your soul path. If completed during downtime, this task should take no less than 1 week. For 1 month, you receive divine insight just before performing an act that would be anathema to your soul path.
Success As critical success, but you gain no special insight.
Failure You don't reconcile and must continue to meditate and redress your misdeeds. Any future purify soul path rituals for the same misdeeds cost half as much and gain a +4 circumstance bonus to the primary check.
Critical Failure As failure, except you do not gain a circumstance bonus to the primary check to future purify soul path rituals for the same misdeed.