Later (despite Willows failed assault on Glory), Willows magic still continues to prove its worth: being able to temporarily freeze Glory, being able to throw Glory (backwards), being able to raise a “force field” (to help protect the scoobie gang) and being able to re-power a telephone (so that Buffy can call for medical assistance). Willows growing ability/willingness to undertake dangerous spells is again illustrated when she later assists Buffy (who has suffered from a “mental shut-down”).
After arranging several candles, Willow starts to mediate, entering a trance which allows her to navigate through Buffy’s memories, eventually “snapping her out of it”. Again, this (necessary) spell raises concern from Giles, who regards the spell as “extraordinarily advanced”. Willow then takes her powers a stage further, when she enters Glory’s mind, in a bid to regain Tara’s mind (and disorientate Glory). Doing so involves Willow placing a hand on both Glory’s and Tara’s heads, then channelling explosive blue energies between herself and them (until her spell completes). Later, we also learn that Willow has gained the ability of telepathy (when she speaks with Spike, through his and her minds).