By way of metaphor, one can describe the centre of the human experience as the being in the chest. And one can distinguish between fundamentally two different modalities, two modalities that you can experience the subject as, the subject being the self or the one that’s experiencing. In Tasawwuf we refer to one modality as nafs and the other modality as ruh.
The taste that we ascribe to the world is the taste that we acquire. So if you ascribe to the world sweetness then you acquire sweetness and you are therefore sweet to the taste. If you ascribe to the world bitterness then you acquire bitterness and you are bitter to the taste. Eventually your body carries the message.