You might somehow perceive your friend as a limitation to your own personal power, but what you may not consciously realize is that you're also limiting them, in the realm of their security needs. You're on a path of personal evolution -- a highly emotional, intense and ongoing process -- and you'll interpret your buddy's security needs as weaknesses. You'll push them to develop a greater sense of internal security, despite the fact that they may not be ready to do that kind of self-work.
They will experience you as exactly the kind of disruptive influence they're trying to avoid. This could turn out to be an invaluable growth experience for you both, but it will likely be a difficult one at best.