There's no such thing as "multiplication" in the Christian life. Neither is their "sustaining the multiplication". It's unbiblical nonsense.
This is just one statement that's totally untrue:
"When you praise God from the dept of your heart, you are opening a door for God to step into your situation for a miracle. "
You're deceiving people. You're giving people false hope. You shouldn't be posting when you fail to understand the Bible, God, and Christianity.
“How would one chase a thousand, And two put ten thousand to flight, Unless their Rock had sold them, And יהוה had given them up?
Deḇarim (Deuteronomy) 32:30
That's called multiplication.