On September 4th my father and lifetime business mentor was murdered. We spoke daily, often for more than an hour, about business, psychology, economics, or simply life. Since his death, I barely know what to do with myself. Even nearly three months later, I'm still emotionally in limbo.
I've come to the conclusion that I must move forward. I'm sure some of you (sadly) have similar experiences - how did you put your life together again?
In terms of "how", there is no magic answer; you just try to keep learning, and keep giving to others, to the best of your ability.
You say that you used to speak for an hour each day; I'd suggest that you spend a portion of that time writing down things you remember-- lessons, anecdotes, etc. The time may come, years from now, when you'll be glad you have some tangible reminders of his advice.
Good luck to you.