From line 22 to line 30 Ulysses speaks about the life and how a life has to be lived. Indeed a not intense life is not a life; it is not sufficient to breath. 

At line 25 the attention is focused, again, on the speaking voice (underline by the personal pronoun me).

He speaks about the death, which is entente by the terms: eternal silence. 

In the third scene there is a turning point of the monologue: the attention is focused on Telemachus, Ulysses's son, who receives the custody of the kingdom from his father. The reader understands that the father is going to leave Ithaca thanks to the phrase: "I leave the sceptre and the isle".

In this sequence also are showed Telemachus' qualities and the virtues of the king (prudence, tenderness, decent) are emphasized also by the alliteration of the sound s and the lexical choice. Telemachus is the opposite Ulysses. Ulysses’ s son appears as one of Ulysses’ s propriety because of the idea of possession that comes out from all the alliterations “mine” and “own”. In the last part of the sequence 

Is also expressed the desire of Ulysses to live: " he works his work, I mine". With mine is tacit that Ulysses's work is to travel.  It also contains the exposition of Ulysses’s decision to leave and the last sequence he makes a discourse in order to convince his old companions to leave again.

The last stanza Ulysses refers to the mariners, with who he has worked. 

He declares that although he and they are old (" you and I are old"), they can still do something, which is noble and honourable before they died ("the long day wanes"). 

He encourages them to make use of their old age because " 'tis not too late to seek a newer world". Indeed they are old in their physics but they are strong in will, and this is the important part: the spirit.

Ulysses accepts his destiny, he is perfectly aware of the closeness of the death but he wants to leave because there are lots of other things to know and he cannot reconcile himself to a live the short time remaining in a place where he is not able to find himself. In the last stanza cam be synthesized the whole poem.