Definition of "glowingly"

I lay stretching out, glowingly alive all over, and tossing with burning impatience for the renewal of joys that had sinned but in a sweet excess

1749, [John Cleland], “(Please specify the letter or volume)”, in Memoirs of a Woman of Pleasure [Fanny Hill], London: […] G. Fenton [i.e., Fenton and Ralph Griffiths] […]