"I am three inches of snow on the eaves, and you are a surprise." I am as insignificant as a three-inch snowflake under the eaves, and you are a glimpse of the world.
This sentence comes from a poem in the online literary work "A Fierce Sword in the Snow", which means that two people are quite different in status and realm from each other, but the gap between them is very small, but they are both amazed and attracted by each other.