Not always.
If the snake is aggressive, biting, chasing, or creating panic, the dream usually reflects emotional stress, betrayal, manipulation, jealousy, hidden enemies, or situations that are mentally exhausting the person in waking life.
But if the snake appears calm, silent, spiritually powerful, or simply present without fear, then the meaning changes completely. Those dreams usually appear during internal transformation phases, stronger intuition, emotional awakening, or spiritual growth.
The emotional feeling inside the dream matters more than the snake itself.