The sun has a sense of all-pervasive brilliance, which does not discriminate in the slightest. It is the goodness that exists in a situation, in oneself, and in one's world, which is expressed without doubt, hesitation, or regret. The sun principle also includes the notion of blessings descending upon us and creating sacred world. It also represents clarity, without doubt.
Chogyam Trungpa (2010). “The Collected Works of Chogyam Trungpa: Volume Seven: The Art of Calligraphy (Excerpts); Dharma Art; Visual Dharma (Excerpts); Selecte d Poems; Selected Writings”, p.21, Shambhala Publications