Sentence:  In the Christian life we have "a handicap". If we are encircled by the greatness of the past, we are also encircled by the handicap of our own sin. No man would seek to climb Mount Everest with a <WSD>pantechnicon</WSD> of lumber weighing him down. If we would travel far, we must travel light. 
Meaning of the word marked with <WSD> tags:  "Originally" '''pantechnicon van''': a van, especially a large moving or removal van. (from 19th c.)