Venom 
To dream that you have come into contact with venom, perhaps through a snakebite, is an indication that you are currently bottling up emotion such as anger and disappointment. You are beginning to despise those around you and are no longer able to contain it. It may also represent the poor way in which you view yourself.
Viper
To dream of a viper is an indication that you are concerned that your peaceful life may soon be disrupted.
Cobra
To dream of a cobra indicates imagination, inspiration, and innovative ideas. You are being mesmerized or blindsided by a certain issue or person.
Black Widow
To dream about a black widow spider symbolizes anxiety over an affair. It's possible that you feel bound up and cramped, and there might be some angry feelings. The female of this spider species is known to eat the male, so it can also be a symbol of female dominion.
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