It doesn't mean that you've got to turn into an extrovert and burn out, because that's no use for anyone, but what it does mean is that you should value the skills and the traits that you have that activism needs.
No significa que tengas que convertirse en un extrovertido y quemarse, porque eso no sirve para nadie, pero lo que significa es que deben valorar las habilidades y los rasgos que tienen ese activismo los necesita.