Meaning and elaboration
Meaning: She who is the object of meditation, the One to be contemplated.
Elaboration
Dhyeya means "that which is to be meditated upon" or "the object of meditation." The term is deeply rooted in Yogic and Tantric philosophy, especially in the context of Dhyana.
The Supreme Focus As Dhyeya, Mahakali is the highest focus of spiritual contemplation. She is the truth toward which concentration, devotion, and inward awareness are directed. Both beyond form and present in countless forms, she draws the seeker toward deep realization when meditated upon with one-pointed devotion.
Beyond Form and Name Though Kali is often worshipped through fierce iconography, Dhyeya points beyond outward appearance. It turns the mind toward the essential reality of the Goddess: her pure consciousness (Cit Shakti) and her non-dual nature (Advaita). To meditate on Kali as Dhyeya is to move beyond image and symbol and enter into communion with her essence.
Path to Self-Realization The practice of Dhyana with Dhyeya as its focus is a powerful way to quiet the movements of the mind (citta-vritti-nirodha) and gradually unite the individual consciousness (Jivatma) with the cosmic consciousness (Paramatma). By contemplating her, the meditator slowly loosens the illusion of separateness and begins to realize unity with the Divine.
Transformation Through Contemplation This name shows that deep, steady meditation on Mahakali transforms the devotee from within. Through that contemplation, one moves from ignorance to wisdom, from bondage to liberation, and from finite awareness to the infinite. She is both the goal of meditation and the reality revealed through it.