Could you please explain the concept of “Tri Sandhya or Sandhyavandanam” of Gayatri given in scriptures? The mata is worshipped daily three times in the Morning, Afternoon & Evening in three different forms – Brahmani/Saraswati, Vaishnavi/Lakshmi & Rudrani-Shabhavi/Kali-Durga respectively. On the basis of this, can we consider Mother Gayatri or Savitri as one of the complete forms of Adyashakti for her worship🤔?

The three times sandhya vandana recommended for worship relates to the movement of the earth around the sun. Each phase is symbolic of the cosmic cycle of creation, preservation and destruction. So the deities worshipped are in alignment with the movement of Time as is evident from their names. However what is missing is Ananda, Radha, the fourth and most important aspect of Sacchidananda, of which, Sat is Existence,  the beginning of creation, Brahma, Chit is Consciousness that holds everything together (Vishnu), Chit includes Tapas or Force that can dissolve all things as well as bring them out into existence, Shiva. But Ananda is the secret impulsion behind creation, Krishna.  It is a quaternary and not a trinity. 

Adya Shakti is even higher. She is the Power out of which Brahmani, Lakshmi, Rudrani and Radha have emerged. Joining them together does not create the Original Power. 

He has asked a question on various aspects and goddesses of the Divine Mother.

Affectionately,

Alok Da