Speaking at the mid-inning of the match, Miller said that he had no choice rather than hitting since he had only five overs in hand.
The 34-year-old said he is maturing and that he goes with the flow.
"It was a really good wicket, came in with five overs, and I had no choice but to go after it. The slower ball sticks to the surface, otherwise, this is a typical Mumbai wicket. We've played with each other for some time now, we know the roles of batters at 5, 6 and 7. It's all about going out there and applying yourself to the task. We know what needs to be done. From my perspective, I think I'm maturing with age, the self-belief is there and I'm going with the flow," David Miller said.
South Africa scored 382/5 against Bangladesh.
