Welcome to the EC I hope you find what you need here. That's interesting about the castle, and the spirit following you! And it's amazing to be protected...
What you have felt is your guardian angel. He is very real and will always be with you. If you wish to have a more in depth relationship you have to ask for it. Angels cannot interfere with our free will choices. If you ask the information will begin to flow to you and you will FEEL a much deeper relationship with the higher realms, our real HOME, and obtain a greater understanding of the fact that you are, like all of us, a spiritual being having a material experience. If you have a look at the links that I have sent to you it will give you a greater understanding of what it means to be empathic. I can also recommend books for you to read that will give you a deeper connection and understanding about your adventure here in this world and why you are here at this particular time and under these circumstances. I have been doing research for more than a few decades and am very willing to share all that I have learned with you or anyone who asks. I would be very, very interested in your past experiences with angels who have protected you as this would add further information to what I already know and it would then be passed on to others to help them. Once again welcome to the EC.
Throw some love into the wind.