Who can know and attain God?

"Sa veda dhātuḥ padavīṃ parasya
Durantavīryasya rathāṅgapāṇeḥ।
Yo'māyayā saṃtatayānuvṛttyā
Bhajeta tat-pāda-sarojagandham॥"

- Shrimad Bhagwat Mahapuran (1.3.38)

The power and might of Lord Chakrapani (one of the names of the lord) are infinite - there is no limit to them. Even though he is the creator of the whole world, the secret of his Leela beyond that can only be known by the one who consistently and continuously inhales the divine fragrance of his feet with a sincere heart, and keeps thinking about his feet with a spirit of service.

"Śṛṇvataḥ śraddhayā nityaṃ, gṛṇataś ca svaceṣṭitam।
Kālena nātidīrgheṇa, bhagavān viśate hṛdi॥"

- Shrimad Bhagwat Mahapuran (2.8.4)

The Lord appears in the hearts of those who regularly listen and narrate His divine acts with devotion within a short time.