Suenos.

Vividos y Vivoras!

SNAKES:

Because of their phallic, biblical, and slithery nature, snakes in a dream are often tied to sexual repressions or desires. What was the snake doing in the dream? Was it hidden, or on the attack?
What did the snake look like? Color, texture, dead, dying, or alive? Did it bite you? Where? Were you calm in the dream or panicked? These are the things that give you clues about what your life is trying to teach you.

Snake biting you means to prepare for a struggle.

Being wrapped and suffocated by a snake is a warning to avoid overwhelming situations or being a slave to your desires. It's okay to say no to dinner requests and dates.
Pop culture influences us even in the subconscious: in the literal sense of a "snake", honestly evaluate your friendships. Someone that you love is thinking about hurting you, especially if you tried to kill it or there were more than one.

Killing a snake is a very good omen. You will overcome hostile influences and treachery. It is not only a good omen because you are obliterating the bad, you are due for some good news. Chances are if you can kill a snake in your dreams, where the potential exists for an insect to become a skin-flaying monster in the blink of an eye, you can conquer stress and difficulty in waking life.

But cobras? Those are a different story all together...