I'm not a native speaker and I've been watching a documentary about Marilyn Monroe, where this monologue appeared.
She searched everywhere, in life and books. She liked poetry. It was a shortcut for her. She entered at ease within its complexity, at home in song and in feeling.
Could anyone please explain to me, how can I understand the part in bold letters? Does it mean that poetry was an alternative route for searching meaning of life? And how can I understand the "at home in song and in feeling" part?