Watching Son Gohan floating in midair with his eyes closed, meditating and training, the tall one and the short one felt somewhat afraid. All they could do was focus on tempering their bodies off to the side.
Son Gohan wanted stronger opponents. Guys like the ones before had offered no challenge at all. It had been like an adult bullying children—boring as hell.
What he craved now were opponents strong enough to make him fight with everything he had. Only opponents like that could make his strength grow.
After all, it was already too late to rush to Namek now. The plans he had laid before all had to be overturned and redone.
If he could not improve his strength as much as possible during this period, he might very well fail to keep up with the Z Fighters' pace.
So before entering the Android Saga, he had to break through to the level of Super Saiyan One. Otherwise, when the time came, he would only be reduced to background scenery, much less take part in later battles.
Son Goku had used his rage over Krillin's death to break through, while Son Gohan had broken through under Son Goku's guidance by recalling Piccolo's and Krillin's deaths.
Vegeta had also transformed through rage at his own powerlessness, but even that had only been possible under the torment of his unbelievable pride.
But right now, Son Gohan had no way to experience that kind of rage, so he could only raise his basic strength first.
Still, he was not worried. Either way, he would definitely be able to transform into a Super Saiyan. No matter what, at the very least, it should be less difficult for him than it had been for Son Goku.
The key was the level of his base