It is very common to see the expression "verso l'alto" on information about Pier Giorgio. The expression took on a life of its own in the years following Pier Giorgio's death. Very often, the words can be found on the bottom of a very well-known photo of Pier Giorgio climbing a mountain and gazing upward. Literally, the translation is "toward the top."
Pier Giorgio actually wrote these words himself on the back of the photo which was taken by a fellow climber on June 7, 1925. Because of Pier Giorgio's sudden death one month later, it turned out to be his last climb. "Verso l'alto" became representative of Pier Giorgio's earthly life -- a constant striving to reach the summit of eternal life.