Living Intimately: A Guide to Realizing Spiritual Unity in Relationships by Judith Blackstone - this is a brief but pithy book and I found several valuable insights within it, even prior to actually doing the simple exercises she provides.
She writes about humans having three main ways of understanding and relating to the world, themselves and each other: Through the head, the heart and the body. These are located in three points along the what I think of as the ‘central colomn’ (she doesn’t call it that) - the energetic line of light that rests along/inside/within the backbone, although it can extend both upwards and downwards.
Her understandings of intimacy within relationships I found clearly explained and useful. She points out that each time we step away from ourselves and inhabiting our own selves, we step further away from the possiblity of true intimacy - it’s only when we are fully within ourselves that we can relate to another being. She is quite comprehensive and detailed about this, with examples, exercises and clear guidelines.
I actually started this book some time ago and got bogged down in it - even though it is so short and mainly clear, the author ocassionally inserts paragraphs that - to me - are in a kind of spiritual/psychological jargon so obscure I stopped understanding what she was actually talking about. However this doesn’t happen very often and the majority of the book is not at all like this. I reccomend it for those looking for extra tips on spiritual/intimate living with a partner, in particular.