>>32717785The composition is done in a way where it can be reprised on many different levels and doesn't feel like a "you had to be there" type of piece to appreciate it. The lyrics carry on the soul of the journey, it doesn't just say you want to be a Pokemon Master it says how far you'll go to reach that goal and how much heart you'll put into it. The investment isn't just one's ambition but what makes it possible, the Pokemon are equally important to reaching the top.
The US version talks about becoming a Pokemon Master but seems to distance Pokemon as mere tools and the investment is that it's the Pokemon's power rather than the bond. It's almost like the song's about Giovanni rather than Ash. The only thing that stops it from being that completely is "You teach me and I'll teach you" and that's debatable because it can easily refer to other trainers' perspectives and insights more than the Pokemon.