This is the 9357th most frequent Catalan word.
immens
Immense; vast; very large or great in size, extent, or degree.
In this sentence, 'immens' is used as an adjective to describe the vastness or enormity of the sky, emphasizing its impressiveness and grandeur.
El cel és immens aquesta nit.
The sky is immense tonight.
Here, 'immensa' (feminine form of 'immens') is used to describe the intensity and magnitude of the joy being felt.
Va sentir una alegria immensa quan va saber la notícia.
He felt immense joy when he heard the news.
In this context, 'immensa' is again an adjective that characterizes the great extent or significant effort involved in the dedication needed.