Scripture commands us: Take care not to forget the things which your own eyes have seen, nor let them slip from your memory, as long as you live. (Deuteronomy 4:9)
A ‘for instance’ might be: At one point in time, we had sunny mornings in this part of the world. Some of us can remember the sun rising into a beautiful blue sky. We need to teach our young children about this–that such things can happen–even though the little ones will have a hard time believing it, never having seen it themselves.
Of course we could think of many other examples of historical events to cherish in our memories. The Scriptures got written in order to keep alive the memory of certain events that we never saw, but which our spiritual ancestors saw.
The ancient ones saw the pillar of fire leading them from slavery under a cruel taskmaster into the freedom of God’s children. They saw Mount Sinai enveloped in lightning and clouds as God gave Moses the Ten Commandments. Most importantly of all, our spiritual ancestors saw the Christ crucified, buried, and then: risen from the dead, never to die again.
Now, when it comes to keeping alive the memory of the tablets from Mount Sinai, we might get depressed. At one point the Ark of Covenant got lost forever, and they’re not making Indiana Jones movies anymore.
But we need not despair: God actually wrote the Ten Commandments into our very nature as human beings. All of us are born rational, social, religious animals. The Ten Commandments cannot pass into the oblivion of the forgotten past, since we inherit them simply by getting born as human beings.
When Jesus conquered death and gave Himself to us as the medicine of immortality, He made following the Ten Commandments both possible and worthwhile. Without Christ’s heavenly grace, we could never overcome our moral weaknesses. And without the horizon of eternal life, we wouldn’t bother to try to overcome them.
But, as it is, we have a great historical fact upon which to base everything. We base our lives on Christ’s Resurrection from the dead. The Holy Mass expresses this fact and connects us with it. Christ lives with us in the Mass. And the fact of the Holy Mass means that endless sunny mornings await those who live in Christ.
Father Mark White Blog 
Some of us know about the importance of Mass – daily Mass is recommended even in most Third Orders, therefore, I assume is recommended for deacons and priests. When did our secular holidays take precedence over Mass on those days – is it because of the shortage of priests? The Eastern Rite church still has daily Mass.