There is either the effortless recognition of what existence is, or there isn’t.
Recognition of non-separation is instant and effortless.
The knowledge is stumbled upon. It isn’t conferred in the same way an academic degree is.
Spiritual practices, spiritual readings, spiritual company, the memories of spiritual experiences, invite that stumbling, but do not guarantee it. The stumbling occurs within a “non-spiritual” life, as well. There’s nothing anyone can do in order to effortlessly recognize what existence is. It is effort-less.