Contemplative Experience - Thomas Merton

Contemplation is not trance or ecstasy, or a tendency to find
peace and satisfaction in liturgical rites; nor is it the hearing
of sudden unutterable words, nor the imagination of lights;
not the emotional fire and sweetness that come with religious
exaltation  It is not enthusiasm, not the sense of being "seized"
by an elemental force and swept into liberation by mystical
frenzy...

Contemplation is no pain-killer.

It is life itself - fully awake, fully alive.
It is spiritual wonder.
It is spontaneous awe at the sacredness
of life, of being.

It is gratitude for life,
for awareness and for being.
It is a vivid realization that life and being
proceed from an invisible, transcendent
and infinitely abundant Source.

Contemplation is, above all, awareness of
 the reality of Source.

And in that realization, the contemplative suffers the
 anguish of realizing that he no longer knows what "God" is.
This is great gain, because "God" is not a what",
not a "thing."
That is precisely one of the essential characteristics of
contemplative experience...realizing that there is no
such "thing" as "God", because "God" is neither a
"what" or a "thing", but pure Who [Pure Being],
the "Thou" before whom our inmost "I" springs
into awareness [being].

Thomas Merton
Christian Monk

From: New Seed of Contemplation

~

Personal Note - His description is somewhat
different from the "mystical experience".  Still -
I relate to some of his description.  In the end, "It" is
 all Pure Beingness/Pure Awareness/Pure Consciousness.