How does UPI work for instant payments

Imagine UPI as a super-fast message delivery service for your money! When you want to pay someone, you just enter their special UPI ID or scan a QR code. Then, you confirm the payment with your secret PIN. Instantly, your bank sends a message to the other person's bank, and the money moves from your account to theirs in real-time, even on holidays! It's like sending a text, but instead of words, it's money, and it arrives in a blink!