नीला आसमाँ सो गया (female)

This is the Lata Mangeshkar version that sings about lost love.

"The night got killed when the moon disappeared in [my] tears.
Loneliness is what fills in [the rest of my] life"

The music punctuates the narration of the story nicely to bring out the emotion. You can relish the male version here.

फूल तुम्हे भेजा है ख़त में, फूल नहीं मेरा दिल है

"I have sent you a flower in this letter, but it is my heart and not just a flower,
Oh, my dear, please write me, whether this [heart] is worthy of your liking."

This kind of poetic outpour is at least good to visualize, even if one is not able to express it to one's lover.

देखो, ओ दीवानों, तुम ये काम न करो, राम का नाम बदनाम न करो

Simple philosophy built into lilting music. The exhortation to 'know God' and 'conquer the mind by studying the [Bhagavad] Gita' is deceptively simple, lyrics-wise.