If the dream of Maya were pleasant, it wouldn't lead you to that urge to wake up would not be as strong. That's why they say that in heaven, there are heavens, sorgha. The gods in heaven, the devatas are not particularly spiritual at all. If there is too much suffering, then also the urge for enlightenment, because right now you're in so much suffering, you can't think of anything higher. So this mixture of pleasure and pain which we have in the human life,. this is said to be very beneficial for spiritual awakening.