The 21-year-old Israel midfielder completed his move to the Scottish champions from FC Ashdod on a four-year deal for an undisclosed fee reported to be £700,000.
Biton was in the stand at Celtic Park on Wednesday to see his new team-mates reach the Champions League group stages with a dramatic 3-0 victory over the Kazakhstan champions to give them a 3-2 aggregate victory.
Speaking last night at the club's Lennoxtown training complex, with agent Dudu Dahan acting as an interpreter at times, he was asked if his Parkhead experience had vindicated his move to Scotland.
"Of course," he said. "I was at the game on Wednesday night and the fans were something that I have never seen before.
"The performance was very good. Celtic is a big team so I don't need to speak about the quality of the players here.
"At Celtic Park everything is open and we can do the impossible." Biton is a former team-mate of Celtic defender Efe Ambrose and compatriot of midfielder Beram Kayal but insists he was not guided in his decision to join Celtic by either.
"I know the level of Celtic so I don't need to speak to anybody," he said.
"They are a big club in Europe, with some of the best fans in the world, so this is my dream.
"I don't know what the fans expect of me but I want to be the best."
Celtic are also expected to conclude the signing of Finnish striker Teemu Pukki from Schalke 04 today.