Sometimes He comes like spring rain, gentle and pleasant. Sometimes He comes like a torrent. Both are His ways.
God is unpredictable, that's one thing we can say about Him. Aslan told Lucy in Caspian, "I never come the same way twice." He does this, I think, because our tendency would be to begin to trust in the system of His movement rather than God Himself. That's idolatry of the highest order and oh-so-easy to do.