As the departure date nears, a slow panic builds. An I ready? Do I have everything I need. Will things be fine while I'm gone? But that is offset by the excitemnt of once again stumbling across ruins in the jungles, drinking chicha with the locals, and pisco sours with my traveling companions. "Offset", might be the wrong word, as it's more that I oscilate between the panic and the excitement. As the date nears the apmlitude and frequency of this wave of emotion will increase until I get on the plane, then I will sleep for hours as all the panic fades to resignment, and the excitement settles into a sure knowledge that this is all really happening.