This is the 2627th most frequent Catalan word.
pou
"Pou" means "well" (as in a water well).
In this sentence, 'pou' refers to a 'well', a structure used for accessing underground water.
El pou del jardí ha estat aquí des de fa molts anys.
The well in the garden has been here for many years.
Here, 'pou' metaphorically represents a 'pit' or deep state, indicating emotional or mental despair.
Va caure en un pou de desesperació després de la notícia.
He fell into a pit of despair after the news.
In this usage, 'pou' symbolizes a 'source' or abundant supply of something, in this case, wisdom.