2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/5430We review recent progress by the RSAA team in elucidating the dynamical evolution of the various classes of Narrow Line Regions (NLR) in active galaxies.7 pages, 2 figures, to appear in Proceeedings of the Conference "Winds, Bubbles & Explosions", Patzchuaro, Mexico, Honouring J. Dyson. To be published in Rev. Mex. A&A, ed. Jane ArthurAstrophysicstext