Various observations by the church through a calendar year may bring helpful themes to mind, but they should never eclipse the central theme that is constant reality.
Nick Batzig writes about Lent, concluding:
Wherever one falls on the spectrum of adherence to elements of the Liturgical Calendar, we must learn to live our Christian lives constantly in light of the once-for-all atoning death and resurrection of Jesus. We must always live and worship in dependence on the One who ascended to the right hand of the Father and is our great High Priest ever living to make intercession for us. We must live our Christian life in union with the One who cried out “It is finished,” even as we anticipate His return. All of our worship practices must coincide with those truths and must be derived squarely from the prescriptive elements of Scripture and the example of the Apostles. To that end, it will be an enormous benefit for us to submerse ourselves in the Scriptures and in the rich repository of Reformed, Puritan and Post-Reformation writings on worship.
Read the whole post at Reformation 21.