कैसे कहें हम प्यार ने हमको ...

Kishore Kumar brings out, very powerfully, the despair of a lover.

ओ साथी रे, तेरे बिना भी क्या जीना?

Male lover sings about how life cannot be without his female lover.

कभी कभी मेरे दिल में ...

There is a very valuable translation, and summary, of this song on the web and most of what is presented here is based on that: http://indiansongtranslations.blogspot.com/2008/07/english-translation-of-kabhi-kabhi-mere.html.