"No. My people are ancient. We were amongst the first. Some say that we invented Time. We oversaw Time, upheld its laws and protected the fabric of it to prevent potentially damaging events such as this one. We looked into the Time Vortex through the Untempered Schism, and we learned to harness its potential. That's what a TARDIS is, a living entity with the vortex at its heart. She's more than any mind can truly understand. If you tried to touch her core, you would burn. So don't." He leveled a stern glare in Galen's direction as he gave the warning. He didn't care to repeat himself, and he wasn't keen on the idea of sacrificing his life for this man's if the warning was ignored. The Doctor was the only one who could harness the energies of the vortex and return them to the TARDIS, though such an act would force him to regenerate.
"The TARDIS draws her energy from the universe itself. The fact that this one happens to be the wrong one means she's a bit handicapped at the moment. Honestly, I'm just grateful she isn't worse off. Something like this could have been enough to kill her. It would have been the end of her kind."