How does this image make you feel?

[anagogy]

Is desire really all that bad?

Desire is neither good, nor bad.

Having said that, desire arises from separation. To be more precise, it arises from the belief in separation. Actual separation not being possible.

What would you desire when you have everything? Because, in Oneness, you do, indeed, have everything. You are complete, in oneness. Thus, there is no desire from that perspective. There is no void you are trying to fill with things you believe you do not have. There is just Being.

In my opinion, the difference between "desire" and "will" is simply that one arises from unconsciousness/separation and the other arises from consciousness/connection. And that is not to imply its an "either/or" situation either. It could lean in either direction to various degrees.

I'm not too well-versed in buddhism. Let's see what you can teach me, my dear friend.

Do animals live unconciously? Do they have attachments?

Second density beings are conscious of choices on their level of experience, but being what they are, at the orange ray level of consciousness, they are not as broadly aware of choice as we are at 3rd density. Thus, much of their "choosing" is from desires that are mostly unconscious in the grand scheme of things.

I'm not sure what you mean by "attachments". They have conditioning. Conditioning by genetics, conditioning by environment, that sort of thing. They have "comfort zones" -- levels of familiarity with different stimuli in their environment, which have the possibility of being disrupted, painfully. That is what I think of when I think of "attachment".