When concentration and awareness are working together, for a fraction of a second you may have a taste of what enlightenment might be. You might find yourself with no discursive thoughts. When you discover that your unwholesome discursive thoughts have been pacified and subjugated, there might be a gap. A pure gap of the absolute, ideal state of mind might occur to you. For everyone, without exception, such a glimpse is always possible. You realize that bodhichitta, or awakened heart, is not a theory or a metaphysical concept, but a reality. It is more than rain clouds gathering in the sky—it is the actual rain.
From “A Glimpse of Wakefulness” in The Profound Treasury of the Ocean of Dharma, Volume Two: The Bodhisattva Path of Wisdom and Compassion, page 6.