According to the phenomenological meditations of Husserl, time involves a continuous synthesis of the past, present, and future into the now. “The present is always born of the past”, so that the emergence of each new phase of the world is the vanishing of another phase of the world. Each phase of our own experience vanishes into another. It is a slipping away of moments and the arising of new moments that creates the flow of time. Life is a dialectical. It is always in flux: “living towards”… “holding in grasp.”
Thoughts overlay the “primal sensations” of the moment. We are always holding onto bits of the present as they slip into the past: grasping, retaining the sedimentation of experience. This retention makes memory possible, but also overlays and clouds our perception of the world arising before us.