This is the 6308th most frequent Catalan word.
mota
"Speck" or "small amount."
Here, 'mota' refers to a small particle, specifically dust.
Vaig trobar una mota de pols sobre el prestatge.
I found a speck of dust on the shelf.
In this sentence, 'mota' describes a small knot or fragment of thread.
La mota del fil era difícil d'enfilar a l'agulla.
The thread speck was difficult to thread through the needle.
Here, 'mota' symbolizes a small piece or speck, this time in a figurative or fantastical context.