Ps 39 I will put a muzzle on my mouth
as long as the wicked are in my presence."
But when I was silent and still,
not even saying anything good,
my anguish increased.
My heart grew hot within me,
and as I meditated, the fire burned;
then I spoke with my tongue:

The Psalmist has practiced meditation in silence in all places. A person can become a professional after many years. The Psalmist is creating a free environment in uniting desire in community.  We must understand that have something in common with unbelievers .We both need grace. 4"Show me, O LORD , my life's end and the number of my days; let me know how fleeting is my life.But we are accepted when we feel the desperate need of being accepted by God. But the unbeliever is desperate to find relief from the struggle of condemnation. When we experience the loss of our confidence in ourselves we unite our need for grace. When we create that need by mediation we allow them a little rest from their desperation. Everyone loves allowance Where the Spirit is there is freedom.