As he crossed the boundary, he was struck head-on by resistance. It felt as if he was passing through a wall of blades. The wall of blades struck him again and again, trying to push him back. But the godhead protected him, allowing him to push ahead.
However, he was also consuming an alarming amount of lifespan for every inch of progress he made. Plus, the godhead couldn't stop him from shaking.
The discomfort of shaking was a minor, insignificant problem, though. It only meant that he couldn't precisely determine where to stop. The real problem was that, for every step that he moved into the past, he consumed an exponential amount of lifespan.
Fortunately, he had passed half of the 10 billion years of lifespan he had stored within the spark of power to the Devouring Supreme Metac before sending it off, so it could withstand the energy drain.
