This is such a cool song. I discovered it listening to my kids music. I am a 40-something businessman (crikey, nearly 50!) and I have had a lot of stress, hassle, pain, money, and some joy too, in my time.
It describes to me the need to let go of the burden of life just for a while. A heavy heart doesn't necessarily mean pain, just responsibility and accountability, and the burden of carrying it. Sometimes you just need something to take it away. For me, its sex and alcohol, maybe for you its drugs (never touched 'em!) but in this increasingly pressurised technical 24/7 world, you just need a break, and the 'sweet sensation' is a way out. And yes, its a blind faith. There is only one true faith, but we are all too scared to embrace it, as its not cool, so we dance with the devil instead. Funny that.....