Rachel Hunter has opened up about the death of her mother and how it spurred her to explore her spirituality.

The supermodel has described in an interview with the Australian Women's Weekly how physically and emotionally gruelling days training in India to be a yoga teacher have helped her work through her grief.

The 48-year-old, whose mother Janeen Phillips died of cancer in May last year, said her training was like "going to hard-core therapy combined with a boot camp, often starting a 6.30am and finishing at 8.45pm.

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"You have to physically work the body, so that you can wear it out, so that you can get to where the shit is," she told the magazine.

India Ganges Rishkesh

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"Because grief is deep. And it's not about hanging on to it, it's about moving through it."

Hunter said her mother was always a spiritual person, raising her and her sister with knowledge on various religions.

Hunter travelled to India as part of her Tour of Beauty TV show, and often goes back. Now she is travelling New Zealand to hold intimate sessions with Kiwi women as part of her Beauty of Soul tour.

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Tonite ♥️💯♥️ Auckland ♥️

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She credits her training in India with helping her emerge from her grief.