Opium and Opiates are great...
The best way to describe it is, while you are high on it, you get that warm radiating feeling you get throughout your body right after you cum, but it is like twenty times stronger...
You feel this slight comforting weight on your shoulders and around your neck.
And it's great for working out your problems [at least in my case], because things that you try not to think about because of how depressing they are don't seem depressing anymore...
And Opium dreams are so wonderful, they are very realistic and usually involve things you cheering or desire...

I would advise against trying any Opiates unless you do not have a plentiful source, because it is very addictive...