Be Steadfast in Meditation
Meditation can be practiced once a day, usually in the morning. If early meditation practice is not possible, do it later in the day. Regularity is recommended so that it will be enjoyably anticipated and experienced. Some people meditate twice each day: in the morning and early evening. Meditate as long as it takes to have satisfying results. Some of the sessions will be more satisfying. All of them will be helpful.
~Roy Eugene Davis
When Mr. Davis speaks of "satisfying" meditation, we can understand this as reaching 1) single pointed focus and then 2) the deep peacefulness that reveals our own true nature as bliss itself. But even on those days when our meditation requires constant return to the point of focus after interruptions by thoughts, sounds or sensations, no effort is lost and our brain and ego are being beneficially trained to make us more peaceful and useful in the world.