Peppermint has a strong, sharp aroma that is rounded with a touch of sweetness. It has a stimulating aroma, which is good for memory.
 
Patchouli has an earthy aroma & slightly sweet & fruity aroma, which is good for feeling grounded & centred.
 
This unlikely duo combines the earthy, low tones of patchouli with the vibrant, high tones of peppermint.The sweetness of the two brings them together & the contrast between the sharpness & earthy aromas create a blend that is good for working, reading, & meditating.