In 1923, Jung began his Tower, a solitary retreat on the shores of Lake Zurich where he went for renewal and repose. He built the house in sections, adding the last in 1955 in response to his wifes death. In Memories, Dreams, Reflections, Jung said the house was a representation in stone of my innermost thoughts and of the knowledge I had acquired and a concretization of the individuation process. Jung felt that At Bollingen I am in the midst of my true life, I am most deeply myself. The Tower inspired the name of the Bollingen Foundation, set up in 1945 to disseminate Jungs ideas. In 1973 the foundation donated its records to the Library of Congress.