Sit down. Sit still with your back straight. Close your eyes lightly. Then interiorly, silently begin to recite a single word – a prayer word or mantra. We recommend the ancient Christian prayer-word "Maranatha". Say it as four equal syllables. Breathe normally and give your full attention to the word as you say it, silently, gently, faithfully and - above all - simply.
The essence of meditation is simplicity. Stay with the same word during the whole meditation and in each meditation day to day. Don't visualise but listen to the word, as you say it. Let go of all thoughts (even good thoughts), images and other words. Don’t fight your distractions: let them go by saying your word faithfully, gently and attentively and returning to it as soon as you realise you have stopped saying or it or when your attention wanders.
Meditate twice a day, morning and evening, for between 20 and 30 minutes. It may take a time to develop this discipline and the support of a tradition and community is always helpful.
To know more about meditatio go here