Exodus 27:20 NKJV
"And you shall command the children of Israel that they bring you pure oil of pressed olives for the light, to cause the lamp to burn continually.
When it was time to harvest the olives, the tree was shaken to get the olives off.
Spiritual parallel: We have to shakes things up to get what we need or want. The status quo will not do. Business as usual will not get it. The common rehearsed rituals will not work. We must be willing to shake things up, following a path we have not walked, doing things we have not done, allowing the Holy Spirit to lead us so we can obtain the fresh oil He has for us.