The point is not how long you meditate; the point is whether the practice actually brings you to a certain state of mindfulness and presence, where you are a little open and able to connect with your heart essence. And five minutes of wakeful sitting practice is of far greater value than twenty minutes of dozing!
Sogyal RinpocheThe real glory of meditation lies not in any method but in its continual living experience of presence, in its bliss, clarity, peace, and most important of all, complete absence of grasping. The diminishing of grasping in yourself is a sign that you are becoming freer of yourself. And the more you experience this freedom, the clearer the sign that the ego and the hopes and fears that keep it alive are dissolving, and the closer you will come to the infinitely generous "wisdom of egolessness."
Sogyal RinpocheDon't you notice that there are particular moments when you are naturally inspired to introspection? Work with them gently, for these are the moments when you can go through a powerful experience, and your whole worldview can change quickly.
Sogyal Rinpoche