[Judean Desert]

[The Desert Says:]

The desert and the wasteland will rejoice over them;

the desert will be glad and blossom like a lily.

(Yeshayahu 35:1)

Yerushalayim and Tziyon, which were "desert and wasteland" throughout Jewish exile, shall rejoice upon Jewish Redemption - they shall blossom, prosper and flourish.

Yisrael would become exiled and its land would become a spiritual desert - like a wasteland where no one plants because nothing grows - bereft of its children, its Temple, its Divine Presence, as forseen by Yeshayahu. But, just as Torah was given in a wasteland and it gave life to a people, so too, the people would give life to the wasteland of Tziyon and Eretz Yisrael would blossom like a lily.

[-Rabbi Scherman, MeAm Lo'ez, Perek Shira]

[Gehenna Says:]

For He satisfied the yearning soul,

and filled the hungry soul with good.

(Tehillim 107:9)

The soul of man longs for infinite spirutal delights and rewards of the Olam Habah. When the days of man are over, and to be welcomed to the bliss of Gan Eden above, the blemished soul must be purged and purified in Gehenna.  Gehenna prepares the soul for the spiritual splendor that awaits it.
[-Rabbi Scherman, Perek Shira]