You do not have to force yourself to do anything at all. There is a continual exchange, a continual dance. It is similar to the sun shining and plants growing. The sun has no desire to create the vegetation; plants simply react to sunlight and the situation develops naturally.
Chogyam Trungpa (2010). “The Collected Works of Chogyam Trungpa: Volume Three: Cutting Through Spiritual Materialism; The Myth of Freedom; The Heart of the Bud dha; Selected Writings”, p.136, Shambhala Publications