I understand your question. Living in accordance with the ‘Dao’ (道) is an everyday Chinese characteristic which involves, diet, study, appreciation of nature, medicine, martial arts and even warfare if circumstances demand – despite everyone agreeing that ‘peace’ (安 - An) is far better than violence for human affairs! Just as the body must be brought into ‘line’ with nature on the outside (and on the inside) - so must the thought processes and emotional feelings, etc. Whereas ‘neidan’ (内丹) denotes a deliberate process of self-cultivation – some people simply surround themselves with Daoist-friendly objects, procedures, people and circumstance. Such a method might also include living in isolation in the hills so as to imbue the Dao of nature. Within married life, this involves primarily ‘shared’ experiences toward a common aim – which, of course, you are already engaged within.