One of the attractions many have to religions like the JWs is the illusion of certitude. Those of us that leave can handle, or even enjoy, the ambiguity of life. The journey is as fun as the destination.
When finding my way, one of my favorite thinkers was Nietzsche. I remember Nietzsche argued to the effect that the Christian church of his time focused way too much on a heavenly goal. In the process the individual Christian ignored their potential in his/her own life, putting too much focus on the next. Nietzsche argued for a renewed vitalism, a love for life.
The illusion of paradise is similar. So many JWs striving for that one day. Meanwhile we have life, imperfect, yet filled with so much potential and beauty, right here, right NOW!