How to pronounce “sukha” in English

Sukhasana, "sukh" means "happiness." So it's the asana of happiness.

What change was this, was finding sukha, getting reliable access to it, and then, eventually, my happiness baseline just kept moving up and up.

Specifically, there is a quality of mind and a technical term in the Pali language-- it's sukha, S U K H A. Sukha is a quality of mind as defined as quiet joy,

Yeah. Sit down. Yeah, we can all sit in Sukhasana.