Musar do Koheleta 2:5

The Temple was the focus where all G–d's blessings were first received; thence they were distributed to the seventy nations of the world corresponding to the seventy "princes" in the Celestial Regions. All these nations received a "reward" from Jerusalem, i.e. all mankind benefited from the Temple of the Jewish people. This was a promise G–d had already made to Abraham in Genesis 12,3: "And all the families of the earth shall bless themselves through you." Solomon knew how G–d directed these blessings via various conduits, and this is why he made gardens, planted orchards and trees etc. as described in Kohelet 2,5. It was patently impossible for Solomon to have planted all these various plants in a single location, [many require different climates in order to grow properly. Ed.] Solomon knew which of the various conduits led to which part of the earth. He therefore strategically placed the various plants near these different conduits so that their seeds would be carried to those areas of the earth where they could flourish best. This is the deeper meaning of Psalms 50,2 quoted earlier. Zion is perceived as the foundation of the earth. The שכינה dispatches blessings to various parts of the earth, to each in accordance with the deserts of its inhabitants.