Answer:
A group of people moving forward in order
Step-by-step explanation:
pro·ces·sion 
/prəˈseSHən/ 
noun 
Definition 1. 
A number of people or vehicles moving forward in an orderly fashion, especially as part of a ceremony or festival. 
"a funeral procession" 
 
Definition 2. 
THEOLOGY 
the emanation of the Holy Spirit.