In all lands around the Mediterranean sea, the olive tree can absolutely be called a tree of life, witness.of the lives of many generations. For all cultures in this areas it is a symbol of sacredness. An olive tree can live till more than 2000 years.
In the Odyssey, the olive tree is the symbol of Penelope and Odysseus marriage. The description by Odysseus of their bed, carved into olive tree, is for Penelope the definitive proof the mendicant in front of her is really her husband, as the bed’s construction is a secret shared by them alone.
In the Torah and the Bible the olive tree and Olive oil has also a strong symbolic value.