Spanish mystics were spiritual thinkers and writers in Spain during the late Middle Ages and the Renaissance. They sought a direct, personal experience of God through contemplation and prayer. Notable figures include Saint Teresa of Ávila and Saint John of the Cross, who emphasized the importance of inner transformation and union with the divine. These mystics often wrote about their experiences in works that combined theology and poetry. Their writings, such as The Interior Castle and Dark Night of the Soul, explore themes of love, suffering, and the soul's journey toward God, influencing both spirituality and literature in Spain and beyond.