यथा नरो गलन्निद्रो यावत्कलनया मनाक् ।विमृशत्याशयं तावन्निद्रा तस्य विलीयते
In plain words
Just as a man whose sleep is slipping away -- the moment he turns his attention, even a little, upon his own state of mind, his sleep dissolves;
यथा नरो गलन्निद्रो यावत्कलनया मनाक् ।विमृशत्याशयं तावन्निद्रा तस्य विलीयते
Just as a man whose sleep is slipping away -- the moment he turns his attention, even a little, upon his own state of mind, his sleep dissolves;