Lent is a contentious season in the greater Church.
Many Protestants still consider it a Catholic practice, but Anglicans (including Episcopalians) and Lutherans also consider these 40 days a time of particular prayer and self denial accompanied by enhanced spiritual Reflection.
These posts might be helpful in explaining Lent:
Ash Wednesday reflections
Lent, denominational differences and freedom in Christ
St Athanasius and the Lenten practices of the early Church
Lent in the early Church — not a pagan practice
Lutheran reflections for Lent
Some Christians seek a daily Lenten programme. The following posts have useful ideas:
Ideas for Lent
Why not read the Bible this Lent?
Bible study plan suggestions
Lenten disciplines can be part of a useful path to sanctification. For that reason, it is a good idea to retain and practice what we have learned during Lent throughout the rest of the year.