Prayer obtains what it is due to obtain — not what I personally want to obtain, which is different. It is useful that islands of prayer exist in the world, even if they are composed of only one person, or two, or three, or four.
Space -- whether it's architectural, spiritual, physical, or emotional -- is the medium in which we come alive, in which we feel ourselves and those around us to be alive without blame, without demands, without expectations, without fear, without hope... Space has a spiritual equivalent and can heal what is divided and burdensome in us.