Yet, we are perhaps cold and unmoved as we neglect Our Lord by declining His invitation to come to Him in the Sacrament of the Altar where He is still redeeming the world of sin and making certain that Sanctifying Grace continues to flow into the world.
The feast of Corpus Christi was extended to the entire Church in 1264 by Pope Urban IV in response to a crisis of unbelief in Europe.
Yes, the feast was instituted to combat unbelief and today the world still suffers from the same affliction by denying Our Lord total love and gratitude. Maybe we could look at Him at the consecration and place all our trials and tribulations before Him for resolution! He has all the answers - simple faith and belief and He will deliver!
Incidentally, the propers of the Mass and Office were written by St. Thomas Aquinas, a master of faith and reason!