Thurisaz is the letter “th”

Anglo-Saxon Rune Poem (from ragweedforge.com)

The thorn is exceedingly sharp,
an evil thing for any knight to touch,uncommonly severe on all who sit among them

Thurisaz signifies misfortune, challenges and difficulties. The phrase that always comes to my mind when seeing Thurisaz is “it’s difficult to kick against the pricks (pricks meaning thorns). Mainly it seems to me that it’s misfortune that is unexpected, and often times cannot be avoided or planned for.

As it relates to the rune of the week, my sense of it is that something has penetrated into the home and estate, causing a bit of trouble as it enters into your space of contentment and prosperity.