What do you mean by blank slate?

My T is a psychoanalyst which by some definition I suppose should mean blank slate. My understanding about contemporary blank slate means no explicit self-disclosure, no overt reassurance, not directing, not giving any advice. However, it also means allowing all emotions, including very negative towards the T, implicit self-closure by being very present emotionally in the sessions, being very attuned and flexible, very good boundaries, very safe.

My background is also emotional neglect and for me my blank slate T is perfect because our connection is genuine, fully following my pace and not enforce on me. The T is ok with not having connection with me when I don't feel ready for that but is always waiting for me and open for that once I show any readiness to be connected.