There's a long running joke amongst Altos that you can tell when the composer's wife was an alto, because you get melodic lines. Bach's choral work tends to include as much intricacy as his instrumental work, across all four parts. Bass still tends to get the "walking the root notes of the chords", but not to the same degree as with other composers.
BWV232, Bach's Mass in B Minor is a favourite of mine: https://www.youtube.com/watch?v=VY1w3EhXqwo
The B Minor Mass is a favorite of mine, as well. I do enjoy Herreweghe. But have you ever listened to a one-on-a-part version? This is a landmark recording:
For me, personally, Listenimg to Bach helps. His pieces are complicated in ways that stir my mind to creative thought and logic, at the same time.