The primary purpose of the Christian life is to be faithful and to be obedient to God and to do His will.
In fact, that is the fundamental purpose of being a Christian, since we acknowledge God as our Creator and Saviour.
And the First Commandment says it all: I am the LORD your God. You
shall have no other gods before me.
So it is the Lord our God that we worship and only Him we will serve and no other.
But being faithful and obedient in carrying out the will of God is certainly not simple or easy at all.
As we heard in the 1st reading, when Ananias had a vision in which he heard the Lord telling him to go to Saul, his initial response was that of reluctance.
Even though the Lord had assured him with all the details, Ananias had heard about Saul's persecution of the Church and the disciples, and he feared going to see Saul.
So the Lord had to order him to get going, and the Lord is not going to take "No" for a reply.
God's command to Ananias was clear. But for us God's will can be rather misty and foggy.
But God is patient with us and allows us to question His will, especially when we know that it is going to entail difficulty and hardship.
But let us know that God's will is always accompanied by His grace.
What seems impossible for us is certainly not impossible at all for God.
We only need to ask God for His grace to be faithful and obedient in carrying out His will.