My meditation teachers always spoke about working with the nature of the mind and to not struggle against the way things work.
Our mind notices what moves and changes. When we feel relaxed and calm, we need only a light touch of attention to also notice stillness. When there is a lot of movement in the mind, we need to focus more intently on relaxation or the movement of breath to anchor our attention in to the moment.
Whether the mind is busy or serene, stillness is always here too. At times we are unable to access stillness because we get lost in thought, associations, memories and reactions. Or we tune in and try too hard to get rid of what is absorbing our attention.
This guided practice has some practical ways to notice both movement and the ever present stillness that is always here too, just under the layer of activity and movement.