Thank you to Lalji, DanielSt, Aniduan and Cubibobi,
Looks like I am almost there. The seed and tree analogy helped further. I have a son, and I can see that his parents, grandparents, and all our combined karmas contributed to his cause of existence. His grand parents are gone, I will be gone soon and he will be there, and I can clearly see that we are not the same, and hopefully after listening to the Bhante it will be absolutely clear.
Best wishes to all,