The first wave splashed me with uncertainty. Beneath my feet, sand swirled out to the sea and I bounced to maintain balance. Before I regained footing, I was buffeted back toward the shore as a second wave broke across my shoulders. I felt caught in an uncertain middle as the upper and lower parts of me now pulled in opposing directions. What could I do but laugh? Suddenly, I felt 28 years old, riding a sensory memory of the surf at Benidorm, Spain. We spent a month there onc