Bhāvam means nature also. Just like we call nature, sva-bhāva, sva-bhāva. So mad-bhāvam... This is one nature, this material nature... This is also Kṛṣṇa's bhāvam, means Kṛṣṇa's nature. Nothing is beyond Kṛṣṇa, but this is external nature. Bhūmir āpo 'nalo vāyuḥ... (BG 7.4). bhinnā me prakṛtir aṣṭadhā. Bhinnā means separated energy. The energy is working. Although it is Kṛṣṇa's nature, still, it is separated nature.
Just like I am speaking, it is being recorded. When it will be replayed, you will hear the same sound, but still, it is separated from me. Similarly, this material nature is also Kṛṣṇa's nature.
Nothing is beyond Kṛṣṇa. There are two nature: the spiritual nature and material nature. So material nature means external energy, and spiritual nature means internal energy. And we, we are also spiritual nature, marginal. We can remain either in the material nature or in the spiritual nature. Therefore we are marginal nature. There are three natures: external, internal and marginal. So so long we are in the material nature, external nature, we are unhappy. This is the position.