This is the 2319th most frequent Polish word.
wewnętrzne
Internal.
Here, 'wewnętrzne' is used as an adjective describing the pocket, indicating it is inside the coat.
Mam w wewnętrzne kieszeni płaszcz klucze.
I have keys in the inner pocket of the coat.
In this sentence, 'wewnętrznych' acts as an adjective to feelings, referring to internal emotions or states rather than external ones.
Mówił o swoich wewnętrznych uczuciach.
He was speaking about his inner feelings.
'Wewnętrznego' in this case describes the garden, implying it is located on the inside part of some larger structure or area.