The Gers currently boast a 100% win record in the league.
“We’ve signed some really good players and the lads have all hit the ground running and it’s been helped by the fact that we won our first few games,” he told Rangers TV.
“That first game against Hibs was so important the way that we came back and it gave us a belief in what we are trying to do. It gave the lads a real confidence to move forward and do what we’ve done.”
Mark Warburton’s men had already picked up two league wins, in convincing fashion, against St Mirren and Alloa by the time the Hibees arrived at Ibrox and confidence was high ahead of the clash with who many considered would be their closest challengers for the title.
The game was a tight affair and was decided by the now familiar sight of a James Tavernier free-kick midway through the second-half.
Since then, Rangers have been in imperious form – save for their League Cup exit at the hands of top flight St Johnstone – and look like collecting the Championship title at a canter.
Miller has found his game time limited in recent weeks - with Warburton preferring the in-form trio of Barrie McKay, Nathan Oduwa and Martin Waghorn - but remains a key figure within the Gers squad and will be seeking greater involvement in the months ahead.