In the TLS Antonio Melechi in The Sound of Blood Rushing, Exploring the experimental source of isolation examines self-enforced isolation (not interestingly enforced isolation of prisoners of all kinds), providing the evidence of trauma inflicted on volunteers. The loss of a sense of Time causes extreme dissociation. One instance he gives set me thinking.
Although many instances the writer records are disturbing, prisoners suffering complete isolation for 2 years will go insane, Yale psychologist Edward Scripture after placing himself in isolation recorded a connection with his body he rarely if ever had experienced before. In the silence he felt he could hear his clothes creak, the sound of his teeth coming together was deafening, the muscles of his cheeks and eyelids rumbled, and he heard a terrible roaring as his blood circulated.
Our body is us in a way that our thoughts (culturally based) are not. They are connected to Time in a way our thinking cannot be. We understanding our relationship to matter through our body, time, distance and relationship to others through the expansion of our arms.