@avirah
Re hazon Ish’s kabala learning- there is a ‘study’ by one of the mizrahi academics in bar ilan university about hazon ish where he argues that h’i did not learn kabala. I saw this study in the possession of a habad friend of mine . Thats probably where sehel gets his info from.
Btw- R SS Deutchs biography of the rebbi of the habad hasidim was forbidden and burnt in habad, but an equivalent [or even worse] biography about the hazon ish is kasher and even mumlats.
Maybe this can be sourced in some specific farbrengen on Purim 1956 ….
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