Dreaming of a snake is usually not about evil but about paying attention: a doubt growing quietly, a word left unsaid, a closeness you find hard to trust. What decides the meaning is the feeling in the dream — was it fear, or curiosity? If the feeling is still on you in the morning, you have already found your question.
A biting dream speaks of something you can no longer look away from. A word, a relationship, a silence that has gone on too long — the dream points at whatever hurts. Where it bites says something too: the hand is your close circle, the foot your own decisions.
Running points to a conversation you keep postponing. This dream usually comes after a sentence you wanted to say and didn't. If you got away in the dream, the delay continues; if you didn't, the matter is making itself heard.
The size of the snake is the size of the matter in your own eyes. Usually it is not one person but an uncertainty you have carried a long time: a relationship left unanswered, a decision you cannot make.
Many snakes speak less of one fear than of the noise of a crowd: gossip, other people's opinions, everyone deciding on your behalf. After this dream usually one question remains — who can I trust?