What is steady-state level of output per worker?

Question:

I have been reading Michael M. Alba's "Why has the Philippines Remained a Poor Country" and in it he mentioned that the Philippines is nearing its steady-state level of output per worker and that the convergence point is lower than advanced economies. Could you please explain to me what steady-state level of output means and why is it bad in context?

Answer:

Steady-state level of output per worker is roughly the same as per capita income in the long run. There is nothing good or bad about it, except countries and their residents enjoy higher standards of living in a material sense if the per capita income is high.