Investigation reveals this to be a mix of causes and conditions (inherited karma) along with actions and attitudes established through compulsive reactions. Using the Buddha's core teaching of the dukkha/ suffering that comes with clinging, we learn to use the feelings in the body as a guide to allow us to move out of this programmed self.
In understanding and relaxing the boundaries of self we step back and listen internally with goodwill, discovering what has to be set aside or investigated. Thus we begin to release the self from the habitual trap of cause and effect.
Inviting the knowing of pleasant bodily sensations to uplift the heart-mind into appreciation or even joy, which might settle into tranquility then samādhi
From Harris Park. Meditation on mindfulness of the breath. Dhamma talk about Mahasi techniques e.g. noting, where to watch the breath, influence of Japan in early twentieth century Buddhism, Satipattana Sutta parts, Mahasi and the evolution of the stages of insight.