If all we know of mind is the aspect of mind that dissolves when we die, we will be left with no idea of what continues, no knowledge of the new dimension of the deeper reality of the nature of mind. So it is vital for us all to familiarize ourselves with the nature of mind while we are still alive. Only then will we be prepared for the time when it reveals itself spontaneously and powerfully at the moment of death; be able to recognize it "as naturally," the teachings say, "as a child running into its mother's lap"; and by remaining in that state, finally be liberated.
Sogyal RinpocheIf the mind is not contrived, it is spontaneously blissful, just as water, when not agitated, is by nature transparent and clear.
Sogyal RinpocheAt the beginning of meditation training thoughts will arrive one on top of another, uninterrupted, like a steep mountain waterfall. Gradually, as you perfect meditation, thoughts become like the water in a deep, narrow gorge, then a great river slowly winding its way down to the sea; finally the mind becomes like a still and placid ocean, ruffled by only the occasional ripple or wave.
Sogyal Rinpoche