My interests have changed. I wonder how to keep my previous life?

Lately, I have experienced a great breakthrough in my meditation. Being able to keep equanimous in front of deep sankharas I couldn't deal with before. My heart and mind are filled with happiness and joy, and I'm constantly deepening my practice. Although, I found that I have completely lost interest in my previous world. I was on the path of writing a dissertation towards doctoral studies, in philosophy, and now I can barely open a book without thinking - what nonsense this all is, philosophers, thinkers, full of ego and ignorance. How can I follow them? I ask myself, will my past life and interests come back to me or it is a true change of heart. I have considered now a way to contribute and give others the gift of dhamma. But dhamma should be given free. And I have a family to take care of. I wanted to share and ask for useful thoughts and other experiences like mine. :) Thank you