WL

Must be specialized by [Discipline].

[Weaving Threads to Spells]

[Weaving Threads to Items]

[Weaving Threads to Group Patterns]

Ads and Disads

 Temporary Realignments: By expending 3 or more [Karma], Concentrating
for 1d turns and permanently spending two reserved character [points],
the [Adept] may add or remove the [Discipline]-relevant advantage or
disadvantage of his choice. The value of the advantage or disadvantage
is limited to a number of character [points] equal to his level with
this skill (so, an Adept with Thread Weaving-10 could temporarily
gain or ignore any advantage worth 10 points or less, or any
disadvantage worth -10 points or less). The change lasts for a number
of minutes equal to the Adept's Thread Weaving+1d. A failed roll has no
effect, and the [Adept] may try again.

Permanent Realignments: By undergoing often-grueling personal rituals,
an [Adept] may use his Thread Weaving skill to permanently add or remove
advantages or disadvantages. The normal cost in character points must
be paid, and the character must have all the necessary points
available in reserve. The process requires a successful roll against
Thread Weaving, and a period of total focus on the process lasting
(100/(Thread Weaving)) days, plus 1 day per character point value of
the ad or disad. Any interruption will ruin the process and require
the character to start again. The exact rituals required are left to 
the GM
to describe, but they may involve anything from severe and regular
Fright Checks to permanent injury or scarring (they may even be
pleasant if the GM rules it appropriate).

Something like this is what's going on when you train up to a higher
circle.  You can use this to buy the advantage "Adept: N," if you're
willing to spend a long time on it.  For this purpose, Thread Weaving
defaults to Willpower-6.  So it'll take a month of work, and you have
to have described a way to do it.  And it doesn't work until you have
"Adept: 1" -- find another way to get that.