Your higher self is the higher dimension of yourself within your spirit. In other words, it's the original you, and is generally referred to as the spirit, which is energy that does not have a physical body or other physical substance. This time you exist as a human being on earth, but by understanding and connecting with your higher self, you will be able to receive various signs.
Before you were born as a human on Earth, you had a mission that you wanted to accomplish, but unfortunately, most people have forgotten it. However, by connecting with your higher self, you will be able to remember your mission, receive signs to live powerfully every day, and live as your true self.
Ascended Master
A high-dimensional being with a noble spirit who has ascended. Their mission is to support human beings of a lower dimension than themselves, human beings. By connecting to your higher self, you will be able to receive signs from the Ascended Masters. However, human beings living in the 3rd dimension cannot directly understand the words from the Ascended Masters, so we use various methods to deliver them to you as signs.