Leverkusen cut Kruse's season-long loan deal short this week, with the 27-year-old leaving Stuttgart after just three Bundesliga appearances.
Again injuries have played a part in Kruse's lack of playing time, with a toe injury currently keeping him on the sidelines.
"Perhaps I have trained too much in Stuttgart," he told Bayer 04-TV.
"Here in Leverkusen they know my injuries and my past. So I'm in the best hands here."
At Stuttgart, Kruse was teammates with fellow Socceroo Mitch Langerak.
Kruse added: "I think this decision is for me simply the best.
"I feel very comfortable in Leverkusen and I'm happy to be back and to be able to work again."
Kruse hopes to be back to full training in a week's time.
The former Melbourne Victory and Brisbane Roar striker has played 21 Bundesliga matches and scored two goals for Leverkusen since joining the club in 2013, with a raft of injuries limiting his time on the pitch.
Kruse missed the entire second half of last season with an Achilles tendon injury he suffered in the Socceroos' Asian Cup final win over Korea Republic a year ago.
"I hope I can be there when they [Leverkusen] need me," he said.
"The coach knows my qualities."
Live Blog: Young Socceroos v Malaysia in AFF U-18 Championship Final
The Young Socceroos take on Malaysia in the final of the 2019 AFF U-18 Championship in Vietnam from 10:30pm AEST. After their come-from-behind Semi Final win over Myanmar on Saturday night, Gary van Egmond's youngsters earned the right to play for the championship at the Thong
Aussies Abroad: Behich makes debut for İstanbul Basaksehir
Caltex Socceroos defender Aziz Behich made his Turkish Super Lig debut for Istanbul Basaksehir but his new side fell to a 3-0 defeat in the season opener against Yeni Malatyaspor. Behich started alongside the likes of ex-Chelsea striker Demba Ba and former Bundesliga star Elje
Aussies Abroad: Mooy makes Brighton bow as Ryan helps secure draw with West Ham
Aaron Mooy made his Brighton & Hove Albion debut as Mat Ryan?s late heroics earned the Seagulls a share of the points against West Ham United. Javier Hernandez put the Hammers ahead on 61 minutes but Leandro Trossard?s struck four minutes later to restore parity in the Premier
Aussies Abroad: Taggart's hot streak continues with treble for Suwon against Gangwon
Adam Taggart hit his first hat-trick in more than five years to continue his scorching hot K-League goalscoring streak. The Caltex Socceroos hitman netted a treble in Suwon Bluewings? 3-1 victory at Gangwon FC to rack up 16 goals in 19 starts since his February move to the Kor