It is much easier to lighten up than to strengthen. In many cases, to strengthen is impossible. As an example, some oldsters may wish to get into physical fitness, but find the changes they wish to impose on their bodies are no longer possible. Some journeys, undertaken, do not have a return route. For us, this was understood at the beginning.
All work is voluntary.
Of course we do, as you might imagine. Imagine yourselves, on another planet, in another galaxy, not ever seeing the flora and fauna familiar to you, not ever seeing the regular rising and setting of your beloved Sun and Moon, not hearing the chirping and singing of birds, the rustle of the leaves in the trees, or the taste of good wine and fresh fruit. Imagine living off rations, sleeping in cramped quarters with no view, with a task that will consume your entire lifetime. We are not only volunteers, we are extremely dedicated volunteers, as we all went in with our eyes open.