In summary: a tree, emblematic and fundamental to human life; the column, a connection between heaven and earth, expressing the upward striving in search of God; the obelisk, a commemorative monument, born in Egypt, a quadrangular trunk surmounted by a pyramid whose tip directs energy. Like a foray into humanity’s original past, the obelisk, in particular, a connection between heaven and earth, is a symbol of the power of the church, recalling the Siccardi law of 1850 that abolished ecclesiastical privileges (Turin 1850 Piazza Savoia).