The feeling is sublime. There's a lot here for oboe and piano. Also scattered about are brief hints of solo cello. A lot of melody from such a tiny fragment. The stronger theme.
Oboe weaves about, then strings enter with a new theme in minor.
Incredibly rich major chords open things up considerably. A brisk new subject diverts attention, strings continue, oboe bounces above pizzicato chords. Lots of ideas. But the secondary theme comes back, digs in. Darkly passionate, like something from Jane Eyre .