A large part of the work I do is based in this concept so I will attempt to define it for you.
Here is the Wikipedia definition and I will elaborate from there:
The transpersonal is defined as “experiences in which the sense of identity or self extends beyond (trans) the individual or personal to encompass wider aspects of humankind, life, psyche or cosmos”. It has also been defined as “development beyond conventional, personal or individual levels”.
So what does all this mean? I think most of us feel that we are doing this grand adventure of life all by our lonesome while we actually do have inner resourses that we can tap into. You can call it “the wise and creative part of you”, or also known as the “Higher Self.” This part of us is all knowing, compassionate, wise and non judgemental. Developing this relationship is a beautiful and eye opening experience that can truly shift your perceptions of the world around you, of yourself and all living things.
Establishing this relationship is also what is called “rescoursing”. I find it incredibly important and helpful in most Hypnotheray processes.