Deity yoga is a meditative practice in Vajrayana Buddhism where practitioners visualize themselves as a specific deity or bodhisattva to cultivate a deeper connection with their qualities and attributes. This practice aims to transform the practitioner's mind, allowing them to embody the enlightened qualities of the deity, leading to spiritual growth and insight. By merging their identity with that of the deity, practitioners aspire to attain enlightenment and develop compassion, wisdom, and other virtuous qualities.