jeni, it's not A Handful of Love.
clues: modern series that's quite old
replying to your clues: Is it Eternal Happiness sung by Kelly Chen?
it is Truimph in the Skies by Eason Chan.
song:"i love her but for her own good, i can't let her know"
it is The Herbalist's manual sang by Frankie Lam
"...It's only nothing, it's only a dream...who will set the story right or wrong, grey shadow.."
(yuen lai see huwn, yuen lai see mown...Goo see shui lai ding zun ka, fuw sik d-o zing..."
Legal Entanglemant by Hackan lee
clue: chung yu kin dik yat sat yi chuk can yu mah