It is a strong color that can not be ignored.
Likewise, most people have a strong opinion of purple: they really like it, or vehemently dislike it.
To some people, purple has spiritual connotations.
Purple could also represent higher consciousness and spiritual protection.
A version of purple is also the color of the crown Chakra.
See also: Colors
The color purple featured strongly in a dream symbolizes personal transformation and spiritual growth for the dreamer.