Level 1 is quite benign, a bit like a supermarket 'loss leader.' But once sucked in persuasive pressure is then applied to do levels 2, then 3, then 4, etc., up to level 8.
From levels 3 onwards is when the opportunities for sex becomes available in the so-called Room of Love ("barriers are available if you want").
But at lower levels sex can and does take place in the
Forum:
Large Group Awareness Training, "Human Potential"