ABSTRACT
The supervision S12 highlights the observations about a dimension in the human mind in which records of fetal life experiences remain active. Wilfred Bion bases this assumption on his clinical experience and suggests the incorporation of a new domain of psychoanalytic investigation. This supervision, conducted one and a half years before Bion's death, shows that Bion had achieved a vision of the mind beyond the innovative proposals that he had presented in Transformations and Attention and Interpretation. He used the model of the physical presence of embryonic remains as in the vestigial tail and branchial cleft tumors. In this supervision, Bion addresses three types of manifestations of this primordial psychic layer: states of mind of "being all-alone and dependent", the impulse of "urge to exist" and the existence of a primitive conscience. This is possibly the only time in all his work in which these three conditions emerge together, making this supervision particularly meaningful.
