‘To do karma and also to do dhyAna simultaneously’ is incompatible. So long as one is in karma stage, associated with that there will be several relationships.
*sangAt sanjAyate kAmaH …krodhaH … * as the Lord has said (B.G. II – 62), a single such association will set up a chain relationship of kAmaM, krodhaM, etc. and finally end up in *buddhi-nAshAt
praNashyati* (intelligence is destroyed and the individual is lost).
That is why the Acharya says in Vivekachudamani (147/149) “karma-koTibhiH na shakyaH” – even if a crore of karma is done, the bondage will not cease.
*viveka-vijnAna-mahAsinA vinA dhAtuH prasAdena sitena manjunA* --
It can be cut asunder only by the grand sword of sAdhanA starting from nitya-anitya-vastu-viveka (discrimination between the unreal and the real) up to the vijnAna stage when one gets the wisdom of experience, by the Grace of God.