Ocean Machine is FAR ore relaxing than SYL, as is his solo stuff, with the exception of Physicist. Physicist is pretty heavy overall, but there are a couple melow tracks. I haven't listened to it for sometime, I need to knock the dust off that one.
Terria is very atmospheric. I listen to it whenever I need a release.
My favorite Devin album is still Infinity. "Christeen" is such a great song, as is "Bad Devil." "Devil" is like a waltz on hallucenigenics. Very cool, to say the least. Then there's "Noisy Pink Bubbles", which is like porno music Devy-style.