Sukham ātyantikaṁ yat tad atīndriya-grā... Atīndriya. Atīndriya means "beyond this." It is covered. Covered senses, you cannot enjoy. Suppose I cover your tongue with some cloth and then I give you one rasagullā. Can you taste it? What you'll taste? There are so many things. If you cover the senses, the real senses, and try to enjoy with that covering, what you'll enjoy? That is not enjoyment. The..., it has to be uncovered. Then you'll enjoy. That is indicated: sarvopādhi-vinirmuktaṁ tat-paratvena nirmalam (CC Madhya 19.170). If you uncover the senses, upādhi... These upādhi... Because I am in bodily concept of life, therefore I am thinking, "I am American," "I am Indian," "I am Hindu," "I am Muslim," "I am black," "I am white," "I am man," "I am woman," "I am tree," "I am this," "I am that." This is covered. How you can enjoy with these covered senses?
So you have to uncover. You have to discover. That discovering process is devotional service. The more you are engaged in devotional service, the more your senses become pure or uncovered. And when it is completely uncovered, without any designation, then you are capable to serve Kṛṣṇa. This is apprenticeship. Vaidhī-bhakti, that is apprenticeship. Real bhakti, parā-bhakti, that is rāgānugā-bhakti. This rāgānugā-bhakti, we have to come after surpassing the vaidhī-bhakti. In the material world, if we do not try to make further and further progress in devotional service, if we are simply sticking to the shastric regulation process and do not try to go beyond that... Shastric process also regulation, that is required. Without shastric process you cannot go to that platform. But if we stick to the shastric process only and do not try to improve ourself... The shastric process is kaniṣṭha-adhikāra, lowest stage of devotional service.