In "Remember" by Joy Harjo, what does the poem mean?

“Remember” relies on anaphora, or repetition. The speaker
uses the word “remember” fifteen times in the poem, which might therefore be considered
a poem or catechism of gratitude for life and all that it offers. The speaker is a
person who connects present existence with past existence, even before those who are now
alive were alive. The listener is a person, probably younger than the speaker, who is
benefiting from the insights and wisdom of the speaker, who is, in effect, a seer with
oracular powers. The implication of the ideas in this poem is that our perception of the
universe is an endless continuum that began before our birth and will continue beyond
our lives.