The Shakti-Mantra of the week is Mantra NO. 609 from "Shree Lalita-SahasraNam:
ॐ दहराकाशरूपिण्यै नमः
OM daharAkAsharUpiNyai namaH
Translation: The Subtle Ether in a heart
The Shruti ("Shree Chandogya-Upanishad", 8.1.1) says: "There is in this city of Brahman the small lotus house and in it that small ether, that should be sought for".
Here the ether of the heart is said to be Brahman.
Simple Tika by Swami Vimalananda: Salutations to Shree LalitAmbika, The Self present as the subtle ether in the heart of living entity.
Tikas cited from:
"LALITA SAHASRANAMAN WITH BHASKARARAYA COMMENTARY" translated into english by Ananta Krishna Sastry, Adyar, 3rd edition 1951 - LINK
"SRI LALITHAMBIKA SAHASRANAMA STOTRAM" #with Namavali# by Swami Vimalananda, Sri RamaKrishna Tapovanam, 1984 - LINK