Guest post by Patti Sanchez (@PattiSan), co-author of the new book “Illuminate: Change Through Speeches, Stories, Ceremonies, and Symbols” (with Nancy Duarte @NancyDuarte) In business, as in life, the one thing that’s constant is change. In our personal lives, babies lose their teeth and grow adult ones. We have our first day of school then eventually graduate. We meet someone whom we someday marry and have children with. In our professional lives, we work toward big goals that result in…