tried to go in depth to find out " lamhon mein jeene ka nishaa, khabon mein, dhunde aashiyaan. gum Mein bhi khushiyon ki saja, hai yahaan......"

When you finish reading a good book, Sad that its gone and happy about the journey and its ultimate conclusion.

I can feel bits of sadness and happiness simultaneously depending on the situation but I don't think you can be sadly happy.

Good conversation, music, and having a feeling of self purpose

There is something called "bittersweet"

your friend is moving away for an awesome new job on the other side of the planet.

Say what?

Easily.

What the hell are you talking about?

when your mother dies but the Patriots win