This simply means that a person relaxes his/her thoughts or stops overthinking.
"Snails pace" is used to strengthen the visual of how the person slows his thoughts. This is an exaggeration to help other people understand the pace of the person's thoughts.
What about sports and games
The only noun among these examples is C, love.
A is a conjunction.
B is an adverb.
D is an adjective.
Using what you have read and what you already know to make a judgement about what something means.
