If you dream of being accompanied by a snake or a serpent, it usually indicates a warning about associating with bad people. This may reflect your involvement in competition or rivalry against enemies. If you are unwell and find yourself sitting with a snake, it could symbolize your mental state, suggesting that you might be heading towards a crisis.
From Imam Muhammad Ibn Seerin's Dictionary of Dreams According to Islamic Inner Traditions â entry "Tracer" (page 443) â resolved via the equivalent "Snake charmer" entry.
A snake charmer in a dream represents mixing with evil people, participating in a competition, or racing against one's enemy. If a sick person sees himself sitting with his snakes in a dream, it means that he will recover from his illness and live a long and a happy life. If the basket carries silkworms instead of a snake in his dream, it means repentance of a sinner, or prosperity of a poor person, or it could mean changing a bad profession for a good one. The presence of a snake charmer in a dream also represents the presence of a deceiver, any taunting profession, or it could mean an illness or suffocation. (Also see Tracker)
Note: Islamic dream interpretation depends on the dreamer's circumstances and state. This is a general guide drawn directly from the source book.