Is there a way to naturally feel like I am on Oxycodone?

I know that Oxycodone gives a person a blissful kind of high.
Is there anyway a person can replicate that same feeling without taking Oxycodone?
I don't want to buy oxycodone. I just want to know how to naturally replicate the feeling via breathing or anything like that.

: http://alcoholdrugstreatment.info/is-there-a-way-to-naturally-feel-like-i-am-on-oxycodone