The desire to fulfill God’s purpose should never become greater than the desire for relationship with the One who gave the call to purpose. Even so, we tend to measure the validity of our relationship with God based on our fulfillment of His purpose. That should not be.
I think God puts time between His call to purpose and the allowance of our fulfillment of that purpose simply to establish our relationship with Him. Our wait time is His way of motivating our reliance on Him. That’s His protection of both His purpose and us.
It’s impossible to fulfill His purpose without relationship with Him. Action towards purpose without relationship is always focused on serving self instead of serving God—self-purpose is concerned about pleasing men over pleasing God. And that’s idolatrous.
The purpose should never replace the purpose giver!