...we are preparing ourselves for the album right now. We are working on the cover which is going to look great! (If my computer doesn't fuck it all up!) It is going to look brilliant and we are going to do some photo sessions soon. The only problem is that we must practise more with our music and make three and a half new songs before there will be any LP/CD, and we must practise more with Hellhammer. Well, talking about Hellhammer he was one of the first to hear SABAZIOS (our old name), and he liked it so much that he asked us if we shouldn't get a drummer instead of a drum computer. And he said he was willing to take it's place, so that's how that happened.Ravn / Mysticum interview, Slayer #10, 1994
As the above 1994 interview shows, In the Streams of Inferno, evolved gradually over several years. During that time Hellhammer (MAYHEM) was briefly a member but never recorded with the band. Members of MYSTICUM declined an invitation to join Hellhammer's early attempt to reform MAYHEM around the same period, after the death of Euronymous.
There is a lot of ways we are different from other Norwegian bands. Our music is very different from all other traditional Black Metal from Norway. Actually very from Metal around the world. We got our own music style, Own sound, our own way to compose our music. We do not use corpsepaint, that's because we don't want to be traditional, and we don't want to throe ourselves onto trends because that is what is going on with Black Metal right now. [...] I'm not saying that all bands that are using corpsepaint are kids or fakes 'cause that is not true. I know there are a lot of bands who use corpsepaint and they are not to be kidding with, these guys are cold to the bone and they have done it for a long time. Anyway, we are talking about MYSTICUM now. Well, for us MYSTICUM and Black Metal has become a lifestyle. A life in sorrow, hate, filth and pleasure, we are not trying to be something we can not gain. We are not walking around trying to be 100% evil, cause no man never reach those 100%. So we can take life as it comes. Enjoying pleasure, pain, filth and sorrow........Ravn / Mysticum interview, Slayer #10, 1994