Opinion of the poem

In my opinion, the poem try to help and give hope to people with problems, for example in verses like "If you can keep your head when all about you, Are losing theirs and blaming it on you". And also can try to say to future generations the principles that they hace to follow as goodness or truth in some phrases as "Or, being lied about, don't deal in lies, Or, being hated, don't give way to hating"