I used to live in a canal boat, 3mm steel roof. The sound of rain on that, so long as you had a fire going, was very cozy and enjoyable. But I think on a psycho

I used to live in a canal boat, 3mm steel roof. The sound of rain on that, so long as you had a fire going, was very cozy and enjoyable. But I think on a psychological level a large part of the comfort is the relief of being sheltered.