Whatever is realised with the intellect is a realisation that is no realisation. That is the arising of an illness, like before. Meditating on the referent of a realisation is to be deceived by ideation. Neither an object nor an agent is established. They are impermanent and false, so they are not truly existent. Therefore, that is a path of delusion.

-- Mahasiddha Padampa Sangye