Am back inside a spa and relaxing in Yoga posture (9)

I believe the answer is:

padmasana

I'm a little stuck... Click here to teach me more about this clue!

'yoga posture' is the definition.
I know nothing about this answer so I can't judge whether this works.

'am back inside a spa and relaxing' is the wordplay.
'back' says the letters should be written in reverse.
'inside' indicates putting letters inside.
'relaxing' is an anagram indicator.
'am' reversed gives 'ma'.
'a'+'spa'+'and'='aspaand'
'aspaand' is an anagram of 'padsana'.
'ma' placed into 'padsana' is 'PADMASANA'.

'in' acts as a link.

Can you help me to learn more?

I've seen this clue in The Hindu.

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