The following post is from Tobias:
Please see the Waharaka Thero discourse (pdf):
“10:13 Asava means our expectations. They remain hidden as anusaya and come to
the surface (based on strong arammana) as asava…”
That is vice versa to the explanation in the post Āsava, Anusaya, and Gati (Gathi):
Āsava are indeed “mental fermentations” that lie deep down in us. That is comparable to mud sitting at the bottom of a glass of water.
If that glass of water is disturbed with a straw, then some of that mud comes to the surface. That is like anusaya bubbling up when we are disturbed by a strong sense event. When that happens, we display our real character/habits or gati (gati).
Which one is correct?