Dreaming of a science fair, especially one involving snakes, can symbolize a variety of themes related to knowledge, transformation, and the integration of different aspects of yourself. Here’s a breakdown of the elements in your dream:

1. Science Fair: This can represent exploration, learning, and experimentation in your life. It suggests that you may be in a phase where you are seeking new knowledge or experiences, particularly those that challenge conventional thinking.
2. Snakes: Snakes often symbolize transformation, healing, or hidden fears. The fact that your snake was calm and of a unique color (purple) might indicate that you are dealing with a situation or aspect of yourself that is unusual but manageable. Purple can also represent creativity and spirituality, suggesting that this transformation may be connected to your inner self or creative expression.
3. Handling the Snake: Your ability to handle the snake with ease, despite it being a creature that many fear, implies confidence and control over a part of your life that others might find challenging. This could reflect your own ability to navigate complex situations or emotions that others may struggle with.
4. Aggressive Seeking of Comfort: The snake seeking comfort by you gripping it tightly could signify a need for control or stability. It may reflect a situation in your waking life where you feel that holding on tightly to something (an emotion, a relationship, or a responsibility) is necessary for you to feel secure. It might also suggest that you or others around you may have a complex relationship with comfort and security, where intense feelings are involved.

Overall, this dream may be urging you to embrace change and complexity in your life while recognizing your strength in managing challenging situations. It could also be a reminder to balance control with the need for comfort, both for yourself and for those around you. Consider reflecting on areas in your life where you may need to assert control or allow transformation to take place.