"Tomorrow, go forth and stand before the Lord. A great and strong wind will blow over you and rend the mountains and break in pieces the rocks, but the Lord will not be in the wind. And after the wind and earthquake, but the Lord will not be in the earthquake. And after the earthquake a fire, but the Lord will not be in the fire. And after the fire a gentle, cooling breeze. That is where the Lord will be."
This is how the spirit comes. After the gale, the earthquake, and fire: a gentle, cooling breeze. This is how it will come in our own day as well. We are passing through the period of earthquake, the fire is approaching, and eventually (when? after how many generations?) the gentle, cool breeze will blow.

"The Desert. Sinai.", Ch. 21, p. 278 - Report to Greco (1965)