The 'soul' is one of the words you can use to talk about your innermost being, the essence of who you are.
Eckhart TolleThe equivalent of external noise is the inner noise of thinking. The equivalent of external silence is inner stillness.
Eckhart TolleThe present moment has always been available to spiritual seekers, but as long as you are seeking you are not available to the present moment. "Seeking" implies that you are looking to the future for some answer, or for some achievement, spiritual or otherwise. Everybody is in the seeking mode, seeking to add something to who they are, whether it be money, relationships, possessions, knowledge, status.. or spiritual attainment.
Eckhart Tolle