In Buddhism, the teachings are often referred to as ‘expedient means’. One might imagine, wrongly, that you are being told something helpful and partially true today, in order to be told something wholly true tomorrow.
They are expedient because they help us escape from the truth/falsehood dichotomy, which lies atop our alive expression like a collapsed tombstone.
It is as if, in a dream, you picture yourself in a tiny windowless room, alone except for a doll, endlessly repeating the same nonsense. Which do you kill: the doll or the room?