Hebrews 10:19-25 / Mark 4:21-25
Most churches would have a couple of holy-water fonts at the entrance.
It is a practice of Catholics to dip their fingers into the holy-water font and sign themselves with the holy water.
More than just a pioustic and devotional practice, there are also a couple of spiritual meanings in that act.
One of which is that we want to use the holy-water to cleanse and purify ourselves before we enter the House of God.
When the pierced Heart of Jesus flowed out blood and water, the blood symbolizes the life that Jesus gives us, and the water symbolizes the forgiveness of our sins.
So when we mark ourselves with the sign of the cross with holy-water, we are asking God to cleanse us and purify us of our sins as we enter into the House of God.
And the 1st reading gives us a deeper meaning of the House of God. The House of God is not just a building that is consecrated to God, it is also the Body of Christ in concrete form, literally speaking.
That is what the 1st reading meant when it said: Through the blood of Jesus, we have the right to enter the sanctuary, by a new way which He has opened for us, a living opening through the curtain, that is to say, His Body. And we have the supreme high priest over all the house of God.
So let us be aware of this mystery as we enter into the House of God. We are the living Body of Christ. In no lesser measure is the House of God the Body of Christ. It is a House of prayer and worship. It is there that we the living Body of Christ come into communion with Christ.