I want the theme to be:
(1) "FREEDOM" and "ABSTRACTED" are the two keywords!!!
(2) Enlightenment is all about calmness, peace and serenity. Serenity is the most beautiful feeling; it is joy, but it is joy via peace, not an unsettling joy. So the design can't convey the mood of revelry, party, ecstasy, celebration or anything unsettling.
(3) I want the design to be abstracted instead of explicit/literal, such as showing Buddha or someone meditating or lotus...
(4) Simple and elegant.
(5) Eye-catching: anyone who have a quick glance shall remember it.
In my bio I talked about my love of the beauty shown in the Lord of the Rings movies. But I definitely don't want the audiences to say: "This book cover design is copied from the LOTR" or "It looks like a book taken from the library of Minas Tirith!" At the end of the day, although it is not a Buddhism book, it is Buddhism-related. So the design can't be explicitly western-cultured or Christian.