"I had to," Ezra replied, though his voice wavered. He looked at the other portals—some showing his parents, others showing Kanan Jarrus’s final moments in the fuel pod explosion.
"Are you sure about this?" Sabine asked, her hand resting on the hilt of her blaster. She looked at the ancient Jedi Temple stones, now rearranged into a shimmering, impossible doorway. [S4E4] Through the Looking Glass
He realized then the danger of the glass. To reach into the past to save everyone would shatter the present. The lesson of the looking glass wasn't about the power to change everything; it was about the wisdom to know what must be let go. The Return "I had to," Ezra replied, though his voice wavered
"You changed it," Ahsoka whispered, looking back at the closed portal. She looked at the ancient Jedi Temple stones,
Ezra didn’t look back. "The wolves showed me the way. It’s not about being sure anymore, Sabine. It’s about balance." Into the Veil