blissfully

autuaasti, ihanasti, onnellisesti In a blissful, happy or joyful manner.
1834 Heman Humphrey - Miscellaneous Discourses and Reviews

What changes will be wrought in the character and condition of mankind, as the millennium advances and rolls blissfully away.

I walked the blissfully painful path of human love with intoxication and tears, always knowing that love's essence was elsewhere, hidden and yet addictively present.