What is the purpose of the invocation in the odyssey

if you are talking about him asking to help him sing the tale it is too give hints to the people reading

if not then there was help was too hel him get a long his journey

a phrase is a set of word that make a sense, an expression formed by two or more words.

" teacher´s dictum on the possession of human "

" made a pile practicing "

" lived to an impressive age and dies "

a clause, in a grammar way is a series of words that have a complete meaning.

" was irritated by the persecution of those who called themselves "

the answer is:

in the fourth paragraph. ( the paragraph that begins with “on friday of my third ”).

hope it !