@JLNobody,
All those phenomena that you refer to, "the taste of an ice cream sunday, the process of conception both mental and biological, a dream state, the motions of atomic particles, then those of sub-atomic particles, the nova of a star, etc. etc." occur or appear in the fundamental or "radical" reality that is "My Life," our life, the individual life of each one of us. As my favorite philosopher, Ortega y Gasset says:
"The new fact, the new radical reality, is 'our life', the life of everyone of us. Let anyone try to talk of another reality as being free from doubt, more primary than this, and you will see that such a thing is impossible. Even thinking is not anterior to living--because thinking is found to be a piece of my life, a particular act in that life. This seeking for an indubitable reality is something that I do because I live, and inasmuch as I live--that is to say, it is not isolated and done for its own sake. I seek reality because I am now busying myself with philosophy, and I do this as a first act in philosophizing. And philosophizing it is, in turn, a particular form of living, which assumes this living--for if I work with philosophy it is because of what I feel as a desire of my life which is restless about itself, and perhaps finds itself lost in itself. In short, whatever reality we set up as primary, we find that it assumes our life to be a fact; the act of giving it place is in itself a vital act, is 'living'."
[From 'What is Philosophy?' by Jose Ortega y Gasset. Translated by Mildred Adams. New York and London: W. W. Norton & Company, 1960.]
For more on Ortega y Gasset's Philosophy of Human Life, see:
http://www.webspawner.com/users/ortegainus/ortegaygassetsp2.html