This question is based on Literary Appreciation. 'Me to the Orangery Solitude invites, a wagtail, to tell the tangled-wood-tale. Christopher Okigbo: Heavens...

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In Christopher Okigbo's poem "Heavensgate," the complexity can be attributed to the poet's use of an extended metaphor. An extended metaphor is a literary device that creates a comparison between two unlike things that continues throughout a series of sentences in a paragraph or lines in a poem. In this case, the metaphor is comparing the speaker's solitude to an orangery, with the wagtail serving as a storyteller to the tangled-wood-tale. This comparison is sustained throughout the poem, contributing to its complexity as the metaphor is explored and developed in different ways.