Nicks has said that she wrote this song while she was contemplating going back to school or continuing on with guitarist Lindsey Buckingham. Buckingham Nicks had been dropped by Polydor Records and she and Buckingham were not getting along. She wrote the song while visiting Aspen, Colorado, sitting in someone's living room "looking out at the Rocky Mountains pondering the avalanche of everything that had come crashing down on us ... at that moment, my life truly felt like a landslide in many ways."[1]
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Read it ages ago, I only remember the Aspen bit.