[davesque]

It is a religious term because of the context in which it appears. For instance, the term "Mindfulness" appears along with "Equanimity" and even the conspicuous company name "Asana". When you hear those three terms together, I'd say it's rather unlikely that there's not some kind of religious backdrop to the discussion.

[timr]

Those are also just words with no inherent religious connotation: "equanimity" means "even temper", and "asana" is sanskrit for "pose".

Your objections seem to say more about your personal bias than they do the words being used.