There is none.
In all my days of trying to get meditation down to a perfect experience, I have never succeeded.
Meditation is simply another mode of communion with the Divine Source.
I have a desire to take 10 minutes three times a day to simply breathe, acknowledge my thoughts and let them flow by without judgement or need to control them.
I appreciate my earlier desire to find the perfect meditation practice because it allowed me to discover there is none.
All meditation is useful, and each of us is made to discover what meditation practice works best for us.
May each of you allow yourself the gift of practicing meditation.
You are Love and Loved.