Truth gritted his teeth.
Not actually, since he no longer had a Physical body, but the act of controlling the Dor took effort, and that is what it felt like. He could still feel the power resisting him, it was Invested on Sel and it wanted to stay there. Visualizing the symbols of Connection, they managed to tug on the power, pulling more of it into this world. Like a stretched rubber band, the power wanted to snap back to Sel, but their efforts and the block of the mimes kept it trapped. Still, the power threatened to rip apart from him, destroying them in the process.
Glimmer focused on their friends. A couple of mimes were fighting in the spaceship, but the Connections showed a high probability of escape for their friends. Glimmer focused on the power, drawing it in. The timing had to be just right. Focusing on the Dor, Truth allowed the rubber band to snap back just as his friends pierced the barrier. The Dor flowed back, exultant to be free, letting Truth and Glimmer ride it to Sel.