This is the 4122nd most frequent Swedish word.
pärla
"Pearl" or "bead."
Here, "pärlan" means a bead or gem, which is attached to a necklace, referencing a physical object used in jewelry.
Den lilla pärlan på halsbandet glänste i solen.
The small bead on the necklace sparkled in the sun.
The usage of "pärla" here is metaphorical, comparing the person's qualities to a gem, representing something valuable and precious.
Hon är en verklig pärla på sitt arbete; alltid hjälpsam och kompetent.
She is a real gem in her job; always helpful and competent.
"Pärla" is used metaphorically again in this sentence, indicating that the café is a hidden treasure or particularly charming place.