This one is a bit pointed in it’s wording…
But I get the point…Christ did not establish a tradition mandating the Church to follow.
Our life in Christ is of courser still everyday. And times of fasting can be appropriate, and can go along with rightful prayer.
Fasting
Mat 6:16 Moreover when ye fast, be not, as the hypocrites, of a sad countenance: for they disfigure their faces, that they may appear unto men to fast. Verily I say unto you, They have their reward.
Mat 6:17 But thou, when thou fastest, anoint thine head, and wash thy face;
Mat 6:18 That thou appear not unto men to fast, but unto thy Father which is in secret: and thy Father, which seeth in secret, shall reward thee openly.
If you want some background on the history of the Roman Church at Calvin refers to Read Wylie’s Chapters on them.
BTW. Mike Ratliff has a post about or tendency toward Doism. My word for Works.