Being able to see the Whirling Dervish in person was an amazing experience even though I am still not sure what I saw. This is what Wikipedia shares about the dance:
In the symbolism of the Sema ritual, the semazen’s camel’s hair hat (sikke) represents the tombstone of the ego; his wide, white skirt (tennure) represents the ego’s shroud. By removing his black cloak (hırka), he is spiritually reborn to the truth. At the beginning of the Sema, by holding his arms crosswise, the semazen appears to represent the number one, thus testifying to God’s unity.
While whirling, his arms are open: his right arm is directed to the sky, ready to receive God’s beneficence; his left hand, upon which his eyes are fastened, is turned toward the earth. The semazen conveys God’s spiritual gift to those who are witnessing the Sema. Revolving from right to left around the heart, the semazen embraces all humanity with love. The human being has been created with love in order to love.
Mevlâna Jalâluddîn Rumi says, “All loves are a bridge to Divine love. Yet, those who have not had a taste of it do not know!”