自得

contented / pleased with one's position

self / oneself / from / since / naturally / surely

to obtain / to get / to gain / to catch (a disease) / proper / suitable / proud / contented / to allow / to permit / ready / finished

structural particle: used after a verb (or adjective as main verb), linking it to following phrase indicating effect, degree, possibility etc

to have to / must / ought to / to need to

to find amusement in one's own way / to enjoy oneself quietly

happy and content (idiom)

immensely pleased with oneself (idiom) / proud / complacent

doing as one pleases (idiom); foot-loose and fancy free

free and at leisure (idiom); unfettered

feeling comfortably at ease (idiom)

to be delighted with oneself