New Delhi, Oct 09 (ANI): Bollywood actress Aishwarya Rai Bachchan, who launched the affordable stem cell banking recently, says becoming a mother has been a blessing for her. "Change is constant in life. Every experience contributes to change and growth, making you hopefully a better human being. Becoming a mother has been a blessing and I cherish this gift from god,’ she said. "Aaradhya is a wonderful blessing in our lives and she is very special and it is a loving fulfillment. I am grateful for this experience," she added. We can understand your emotions Aish!!!