In short we see that the sparśa, mute-consonants have symmetries that are related to manifestation of life and its substance.
Paninī has explained a system of pratyāhāra or abbreviation in which the first and the last letter actually include the entire list between them. Thus kam ( kma ) would stand for the entire list of mute consonants. Now we look at the Brihadāraṇyaka Upanishad I.2.1 which is the first shlöka of the ‘Hymn of Creation’  as follows:-
naiveha kimcanāgra āsīt. mrtyunaivedam āvrtam āsīt, aśanāyayā, aśanāyā hi mrtyuh ; tan man’kuruta, ātmanvī syām iti. so’rcann acarat, tasyārcata. āpo’jāyanta arcate vai me kam abhūd iti ; tad evārkasya arkatvam ; kamha vā asmai bhavati, ya evam etad arkasya arkatvamveda.
….There was nothing whatsoever here in the beginning. It was the absence of time or mrtyuh, death that hid everything. For aśnāyā or that which has not emanated, in other words is unmanifested is death. This aśnāyā- mrtyuh or the Unnameable, Brahman had a first thought in His mind, ‘Let me be’. This generated the first movement of thought and from this worship āpo emanated.…..’Verily’, he thought, ‘since my first desire has given rise to kam (within me)’, therefore this is the essence of energy or arka of all creation – he who understands kam thus comprehends the meaning (and control) of arka.