Prayer is not a way to get what we want to happen, like the remote control that comes with the television set. I think prayer may be less about asking for the things we are attached to than it is about relinquishing our attachments in some way. It can take us beyond fear, which is an attachment, and beyond hope, which is another form of attachment. It can help us remember the nature of the world and the nature of life, not on an intellectual level but in a deep and experiential way. When we pray, we don't change the world, we change ourselves.
The field of space and time is invisible, but in that space and time is the conscious awareness of the mind of the universe. Within it are mystical experience an high loving. The cosmos is being created in its entirety every eco-second. We are working with God in a process of coevolution.