Leaves stay Santa Claus, that is an old story invented by religion to make happy kids? Here, you're talking of faith?
C'is a big difference from believing in God and have faith in him, faith is the certainty of'existence of God which is based from their direct experience of seeing God, or perceived in a tangible way its presence, accompanied by its audible answers to our ears.
Therefore, not all are in faith, but if observe the word of God and put it into practice, and pray to God constantly, they can do their experiences! Behold, I put it in the boss what the word of God says:
Jeremiah 33: 2. "Thus says the Lord who made the earth and'has formed to make it stable and whose name is the Lord: 3 **Call to me and I will answer thee** and shew thee great and mighty things which thou knowest not.
The Hebrews 11,1. Now faith is the substance of things hoped for, the evidence of the reality that not seen.
We know that'a man is not justified by the works of the law but through faith in Jesus Christ, and we too have believed in Christ Jesus to be justified by faith in Christ, and not by the works of the law: because by the works of the law there shall no man be justified.
Ephesians 2:8. By grace you have been saved through faith; and that not of yourselves; it is the gift of God.
9 Therefore I say to you: Ask and it will be given to you; seek and you will find; knock and it will be opened to you. 10 because anyone who asks receives; everyone who searches finds and will be open to him who knocks.
Here Jesus is urging Catholics to pray with perseverance, but much more, Jesus is building up our faith, encouraging us to understand that God will respond when we pray with perseverance. We can be sure of it!
John 14: 22-23.
He said Judah, not'Iscariot: "Lord, how is it that you show to us and not to the world?". 23 Jesus answered and said unto him, If a man loves me, he will keep my word, and my Father will love him, and we will come to him and make our home with him.
As we have seen, who prays to God, He will manifest himself to him, so if God is manifested to the believer, his faith is strengthened, and unquestionable, because he saw with his own eyes the living presence in his life, of God. And we the faithful, we believe the promises of God, on the contrary, some religions,which say that God replied only in the past, but God does not change his promises, because they are directed to all his faithful, say the faithful, *NOT* religious!!!