This slow movement in F# minor and 2/4 is in A-B-A-C-A-B-A format. Its a dumka, a Czech piece that alternates between happiness and sadness. The A section sounds a lot like Nature Boy, the hit from 1947 written by an early hippie. Dvorak was a violist, and that opening viola theme is something that violists will kill to play.
The B theme sounds a bit like Alfie, the old Burt Bacharach tune from 1966.
The A theme returns with all its heartbreak.
The C theme jumps to the very strange time signature of 2/8 for a vivace passage that takes off like a shot.
The A theme comes back again on first violin.
The B themes return is in 6 sharps, F# Major, which gives the piano part a special brilliance.
The return of the A theme brings back the sadness, and it ends with a reach for the handkerchief.