No it is not bad, and I do not think that it is unholy or forbidden. And you should not see it as dirty. I believe what our Lord said in "Mark 7:20,And he said, That which cometh out of the man, that defileth the man."
I really think that it only defiles you if it is what comes out of you and it does not defile you just because it is something you live with that is on the inside of you. So no I do not think it is bad or dirty and does not defile you so long as you do not allow it to come out of you and you do not act on it to where it comes out of you. No we are not defiled for what is inside of us only for what comes out of us! I hope this makes sense to you. Do I fully understand it? No I do not. But because Jesus says that what enters into a man does not defile him only that which comes out of a man does then it should not worry us not even one bit. This is what I believe and I do really think that Jesus loves, cares and understands us and our needs and wants us to have something that is so beautiful without us having to defile ourselves. I hope you understand where I am coming from and that I am not just trying to justify anything.
I am so glad you brought this up it really helped me to clarify what I believe, THANK YOU!

God Bless

Blaze