Devotional service is the cultivation of consciousness that simultaneously awakens a genuine attachment. The material world exists only as a dream due to our attachment to it, but it is a temporary manifestation that has no connection with reality. We identify with it and think it is real when it is happening. But when we wake up, we see it was only a dream.
LFD Vol 3,Cultivating Krishna Conciousness Pg 167, 2nd last paragraph.