By Kṛṣṇa's grace, by God's grace, everything is there, provided you depend on Him. There is no fear. Nārāyaṇa-parāḥ sarve na kutaścana bibhyati (SB 6.17.28). If you want to become dependent on God, you'll never be afraid—svargāpavarga-narakeṣv api tulyārtha-darśinaḥ—either you are put into the heaven or hell or anywhere.
So this is tapasya. If you perform tapasya for transcendental understanding, then the result will be that your next life you will be promoted to the spiritual sky. Tyaktvā dehaṁ punar janma naiti mām eti kaunteya (BG 4.9). After leaving this body, one does not come again to this material existence, miserable existence. But unfortunately, we do not accept that we are living in miserable condition. That is called māyā; that is called ignorance. We are actually in a miserable condition. We are trying to adjust things. But that cannot be adjusted. We have to suffer. The only way is that you realize yourself, what you are, and act accordingly.