अभी, मुझ में कहीं, बाकी थोड़ी सी है ज़िंदगी

The poet describes three occasions, or three moments, that highlight

1. The tenacity — लगन — that the human mind capable of 
2. The compassion — रहम — that can exist in this world
3. The prick, i.e., pain, — चुभन — that can be experienced when an attraction lights up in an otherwise desolate life

and has the character sing:

Whether I should feel a little happiness, or sadness
Whether I should die or live [a little].

Wonderful music using the violin. Very moving.

साथिया ... साथिया ... पगले से दिल ने ये क्या किया

The female lover sings how her [miscreant] heart has chosen its lover without her knowledge ... 

The poet has chosen to refer to the heart in third person, as though the real she is different from her heart. Such separation helps in understanding when the heart does good things and bad, a clear ingredient in making the head rule the heart. That all of this woven to memorable music is, of course, the beauty of this creation.