Matthew 6: The invisible Father knows you

The Lord is invisible. We can't see him, or listen to him with our normal eyes and ears, but we can see others. Every human being wants to be applauded and well treated by others but the Christian must know that this is much less important than to be "applauded" by the Lord.
Thus, a Christian must pray to the Lord, read the Bible searching for wisdom from the Lord to please Him. It is much less important to be seen as a good Christian by other members of the church or to be seen as a good Bible scholar.
It is difficult to understand that our food, our intelligence and even our money come from the Lord. He is the One who provides, so a Christian must trust his future in the Lord's hands. It is much more natural to think that my money is MY money because I got it but that is not what the Jesus taught us.
The Lord is merciful and certainly I am not merciful as the Lord is, but He calls me to be merciful too. He wants me to forgive others because He forgave my sins.
So, Matthew 6 encourages me to live with the assurance that the Lord looks to me and takes care of me. This assurance must lead me to respond to his love in a transformed life that should make me pray reflecting the "Lord's prayer" MSG:

9-13 Our Father in heaven,
Reveal who you are.
Set the world right;
Do what’s best—
    as above, so below.
Keep us alive with three square meals.
Keep us forgiven with you and forgiving others.
Keep us safe from ourselves and the Devil.
You’re in charge!
You can do anything you want!
You’re ablaze in beauty!
    Yes. Yes. Yes.