"Prayer is a very dangerous business. For all the benefits it offers
of growing closer to God, it carries with it one great element of risk:
the possibility of change.
In prayer we open ourselves to the
chance that God will do something with us that we had not intended. We
yield to possibilities of intense perception, of seeing through human
masks and the density of 'things' to the very center of reality. This
possibility excites us, but at the same time there is a fluttering in
the stomach that goes with any dangerous adventure.
Don't we know
for a fact that people who begin by 'just praying'--with no particular
aim in mind--wind up trudging off to missionary lands, entering
monasteries, taking part in demonstrations, dedicating themselves to
the poor and sick? To avoid this, sometimes we excuse ourselves from
prayer by doing good works on a carefully controlled schedule."
Source: Clinging: The Experience of Prayer