“You must learn one thing. The world was made to be free in.” — David Whyte Many of you told me how much you enjoyed the post featuring Mary Oliver’s “Invitation” this week — so I’ll continue our celebration of National Poetry Month with an old favorite. Sometimes the right poem can work its magic immediately. And sometimes it depends on what you’re going through at the time you read it. David Whyte’s “Sweet Darkness” is one such poem for me. Revisiting it today, I am struck this time by the sheer power of its last three lines. This heart-stopping poem reminds us that loneliness could be an invitation to…