Son, after realising the things of this world are unreal, there is little benefit in dwelling in solitude. When the falsehoods of phenomenal appearances have collapsed into their own nature (emptiness), and the unaltered nature of phenomena has been recognised - Do not nit-pick the subtle concepts of grasping and grasped or attach to the contaminated virtuous deeds. Please maintain the stronghold of the vast expanse of primordial pure nature. 

– Padmasambhava, Guru Rinpoche