Mysticism is man's long, loving look at reality to which he is united by
love. It is the highest expression of man's intellectual and spiritual life.
Its activity is its own end. Mysticism has no utilitarian purposes: just
looking, loving, being utterly, magnificently, wildly useless. It is life
itself fully awake and active and aware that it is alive. Mysticism is awe
and wonder at the sacredness of life and of being and of the invisible,
transcendent and infinite abundant source of being. It knows the source
obscurely, inexplicably, but with a certitude beyond reason. It is a
veritable vision of the Godhead - in the human, earthly context. This act by
which man sees who he is - not in isolation, but against the background of
eternity - and so simultaneously and experientially sees who God is - this
is genuine mysticism.
William McNamara, Christian Mysticism, P. 8