There are innumerable living entities throughout the material and spiritual universes, but still Lord Kṛṣṇa is full in Himself. To think that God has lost His personality because His many parts and parcels are distributed all over the universe is an illusion. That is a material calculation. Such calculations are possible only under the influence of the material energy, māyā.
-Chaitanya Charitamrit Adi 3.71, Translation and Purport

स वै पुंसां परो धर्मो यतो भक्तिरधोक्षजे ।
अहैतुक्यप्रतिहता ययात्मा सुप्रसीदति ॥ ६ ॥
The supreme occupation [dharma] for all humanity is that by which men can attain to loving devotional service unto the transcendent Lord. Such devotional service must be unmotivated and uninterrupted to completely satisfy the self.
-SB 1.2.6